XCOM : ENEMY WITHIN

Overview:

  • Estimated trophy difficulty: 7/10
  • Offline trophies: 31 (16, 9, 5, 1)
  • Online trophies: 0
  • Approximate amount of time to Platinum: 30+ Hours.
  • Minimum number of playthroughs: 1.
  • Number of missable trophies: 5: Zom-B-Gone, Solid Prospect, Ours are the Furies, Where in the World and Guardian of Earth
  • Glitched trophies: None
  • Does difficulty affect trophies?: Yes
  • Do trophies stack?: Yes
  • Do cheat codes disable trophies?: Yes, usage of “Hero” names disable trophies.

Road Map:

Note: The saves are locked, thus you will need access to the PS+ Save File Cloud in order to back them up.

XCOM: Enemy Within is a standalone expansion to XCOM: Enemy Unknown, a turn based strategy game, which also focus heavily on developing your main base as well as researching the weapons and equipment you utilize during your missions.

The reason 2 playthroughs might be more advisable for some is because if you’re new to XCOM or strategy games in general, starting on Classic difficulty and also limited to a 4 man squad, might prove too difficult at times. This is especially true during the trophy related Council Missions, of which there are 4 in total: Zom-B-GonePortentSolid Prospect and Ours are the Furies.

While Zom-B-Gone isn’t tied with the other missions previously mentioned, they all have in common that they must be started as soon as they appear. If not, they will disappear for the entirety of the playthrough; thus it is imperative that you pay close attention whenever a Council Mission is given to you. Certain generic mission types such as Bomb Disposal and Target Escort can be ignored, but will increase Panic Levels. See the respective trophies for more information.

Guardian of Earth is highly missable due to the limited number of medals given. Out of the 5 medal types, only 1 Star of Terra is rewarded and only first obtainable after a specific unmissable event takes place. Further on, the appointed soldier is also required to be tested positive in the Psionic Lab. See Guardian of Earth for more information.

Other matters of importance is that you cannot earn any trophies in XCOM: Enemy Unknown while playing XCOM: Enemy Within (the opposite is true as well). The reason for this is that both games have their own respective trophy list.

Hero names are Easter eggs that, when used, turn your soldiers into extraordinary powerful ones. If you decide to use any of them, of which there are 6 in total, you will disable trophies in the process. In any case, the game will promptly warn you before doing so. The names are as follows:

  • William Carter
  • Joe Kelly
  • Otto Zander
  • Ken Levine
  • Chris Kluwe
  • Sid Meier

As a precaution, you should be aware that some people have experienced issues, e.g., freezes and lockups while playing or watching cutscenes. This appear to originate from having data installed from XCOM: Enemy Unknown, possibly also in conjunction with having patch version 1.01 installed, thus causing a conflict. Personally, I played XCOM: EW on a newly formatted hard drive and didn’t experience any issues. To be safe, you might want to consider deleting the game data installed belonging to XCOM: Enemy Unknown prior to starting on Enemy Within. Among the worst issues people have reported is with the Base Defense mission.

Finally, when starting a new campaign, do not disable Operation Progeny in the advanced options menu, as this will make Solid Prospect and Ours are the Furies unobtainable.

Walkthrough:

As mentioned during the introduction, XCOM veterans and strategy gamers alike should start on Classic and attempt obtaining the Platinum in 1 playthrough. That being said, XCOM: EW is by no means as difficult as XCOM: EU, although there certainly are some hard parts here and there. Those who are new to the franchise or don’t have strategy games as their favourite genre, but still feel confident enough, please follow Step 1 while more casual players should start with Step 2.

Step 1 – Classic Difficulty Playthrough with Africa as starting location:

The reason for this starting location is the powerful bonus of an extra 30% of your total monthly income. With full satellite coverage, you will earn close to ~2000 credits per month, which isn’t too hard to manage.

During the first 3 months, be certain to build primarily Satellite Uplinks and as many satellites you can afford. Be sure to plan ahead and build enough Power Generators, while also excavating and building an Access Lift once every month. Any mission reward you come across, always pick Engineers as they’re vital for the continued construction of Satellite Uplinks.

The only equipment you should purchase during this time are 4 S.C.O.P.E.’s; 1 each for every soldier. The research should be focused on Beam Weapons, which will help immensely as tougher aliens appear. Don’t be discouraged by the very long research times; the battles meanwhile might be a little hectic now and then, but it’s very manageable.

From month 4 and onwards, you should have a solid economy with the aid of constantly selling items on the Grey Market. You can basically sell everything with the exception of Elerium 115, Alien Alloys, Weapon Fragments, UFO Flight Computers and UFO Power Sources respectively.

When you first get the option to start Covert Operations against EXALT, do so right away. By constantly having EXALT infiltrated by one of your soldiers, they won’t be able to perform any sabotage attempts. This makes Laboratories somewhat obsolete, which in turn frees up much needed space for either more Workshops or Power Generators.

Snipers are almost as powerful in XCOM: EW as they are in XCOM: EU. With 2 of them in early to mid-game – either on rooftops or at the edge of the map during UFO crash landings – missions will become much easier and manageable. At some points I experimented with 3 and even 4 snipers; with very good results to say the least. Still, I recommend a more diverse set up, as it’s more flexible and forgiving when you need to go up close and personal, which often is the case.

Other general but very useful tips, is that always build facilities that give an adjacency bonus in squares for maximum bonus. When on missions, always use full cover and don’t hesitate to fall back once a fight commences as the aliens tend to be overly aggressive in their behavior.

Regarding the new resource Meld – which is used to create MECs and genetically modify your soldiers – you will need a minimum of 210 in order to unlock the most demanding Meld related trophy, i.e., Steel Martyr. Until you have amassed the necessary amount, I would advise against from spending any Meld as it will only get increasingly harder to obtain it as the months progresses. I personally gathered close to ~500 Meld before I couldn’t be bothered, however, at that point I realized I had far more than I actually needed. So, simply obtain the minimum amount, then proceed to save and reload for any Meld related trophy.

Step 2 – Easy Difficulty Playthrough with Africa or Asia as your starting location:

This playthrough will help you to understand the game better and prepare you for the Classic playthrough. You can either choose Africa as starting point as in Step 1 for that economic boost, however, at Easy difficulty it can be more worthwhile to start from Asia.

With Asia as starting point, every project in the Foundry and the Officer Training School cost 50% less. That means the ability to field 6 units instead of 4; an 25% increase in experience from kills; soldiers healing twice as fast after receiving an injury, along with many more benefits at a much earlier phase than otherwise. Basically the same overall strategy and tactics apply as in step 1, with the main difference being that the game is much easier and forgiving.

 You Win 
You Win, Everything

 Who Needs Limbs? 
Augment a soldier in single player

First you need to research Meld Recombination. Then construct the Cybernetics Lab and via the Engineering menu, add a soldier for augmentation. You also need to construct a MEC-suit, which is done in Engineering. After 3 days the soldier is available again with the last step being to equip him/her with any MEC-suit via the Barracks.

 A Little Bit Alien 
Modify a soldier in single player

First you need to research Meld Recombination. Then construct the Genetics Lab and via the Research Labs menu, add a soldier for gene modification. Choose from any Gene Mods available.

 Enemy Within 
Get a Soldier to have 5 modifications in single player

Simply add any Gene Mod for each and every selectable body part i.e the brain, eyes, chest, skin and legs.

 Steel Martyr 
Deploy three tactical subsystems on a single soldier in single player

Simply construct a MEC-suit and maximize it choosing any available upgrades, proceed to equip it on an augmented soldier.

 Apotheosis Denied 
Deal with the newest global threat

Locate and neutralize the EXALT HQ. See Where in the World.

 They Shall Not Pass 
Eliminate all alien waves

After locating and neutralizing the Alien Base, XCOM HQ will suffer a retaliation attempt after roughly 2-3 weeks, designated Operation Ashes and Temples. You will be attacked in waves with a large and versatile mixture of aliens, Mechtoids and Cyberdiscs included. Form a defensive line immediately and be prepared to fall back if necessary.

 Zom-B-Gone 
Eradicate the infestation

Missable

This is the first mission of the trophy related Council Missions, unlocked after your first encounter with Chryssalids. The mission in question is called Site Recon. Unprepared, this can be very difficult with a 4 man squad on Classic. I recommend at least 2 snipers with Squadsight and Gunslinger and 1 Assault up front with Run & Gun.

 An Army of Four 
Beat the game without buying a Squad Size upgrade on Classic or Impossible difficulty

Avoid purchasing any Squad Size upgrade via the Officer Training School through the entirety of a playthrough on Classic or Impossible difficulty. You can switch between any soldiers available and fielding any number of 4 or below is fine too. Simply refrain from purchasing the upgrades mentioned.

 The Meld Squad 
Field a fully enhanced squad and win the mission

You can mix a squad of 4 with any combination of Gene Mods and MECs. Also see Mutatis Mutandis and By Our Powers Combined.

 Shieldbuster 
Eliminate an enemy’s shield and kill it on the same turn in single player

It’s highly advisable that this is attempted on a Mechtoid and not a Sectopod, mainly due to the fact that Sectopods are much more lethal and harder to destroy than a Mechtoid. Wait until the supporting unit, a regular sectoid, use its Mind Merge ability – which will add a white bar on the Mechtoid – indicating that the Mechtoid is Psi shielded. Now focus fire and destroy the Mechtoid in 1 turn.

 Someone Your Own Size 
Kill a Muton Berserker in melee combat in single player

When constructing a MEC, choose the Kinetic Strike Module. Once in close combat simply use the ability found in the Combat Menu and the MEC will use a devastating melee attack. It can be wise to wait until you have built the Hyperwave Relay facility so you can identify what type of aliens any UFO shot down or landed contains.

 Taking a Load Off 
Stop a squad member from suffocating in single player

Fairly early on in the game you’re introduced to a new enemy type, designated Seeker. The Seeker is easily recognized as it’s hovering and squid-like in its appearance. Be sure to have everyone properly covered and wait until it make its move.

 Where in the World 
Make certain of the new threat’s location

Missable

Perform Covert Operations against EXALT via the Situation Room and each time you succeed, you’ll be granted clues which will help with narrowing down the location of the EXALT HQ. Simply repeat this process until all but one country remain. However, until you have, you cannot neither guess or accuse a country of harboring EXALT – even if correct – as this will void the trophy.

 Mind the Step 
Jump two stories in one move in single player

You need to apply the Muscle Fibre Density Gene Mod on a soldier, unlocked by the Thin Man autopsy. Once in a mission simply approach a multi-floored building and jump on top of it.

 Nice Cover 
Use Collateral Damage to blow up a car in single player

Using any MEC, use the base ability Collateral Damage on any car.

 By Our Powers Combined 
Field a squad with 4 augmented soldiers, each with a different base ability and win the mission

You need 1 soldier augmented from every class i.e. Assault, Heavy, Sniper and Support. Proceed to win any mission with your 4 chosen soldiers to pop the trophy. Stacks with The Meld Squad and Rise of the Machines.

 Rise of the Machines 
Field a squad consisting entirely of augmented soldiers and SHIVs (min. 4) and win the mission

The description for this trophy is a little misleading as SHIVs are not actually required, thus potentially saving you a lot of credits and valuable research time. Field a squad with any 4 MECs and win a mission. See By Our Powers Combined.

 Mutatis Mutandis 
Field a squad where all members have at least two modifications (min. 4) and win the mission

Add any 2 Gene Mods on any 4 soldiers and win a mission. Stacks with The Meld Squad.

 Mental Minefield 
Kill an enemy as it is psionically attacking you in single player

First off you need the Neural Feedback Gene Mod, unlocked by the Sectoid Commander autopsy. As with Someone Your Own Size it can be better to attempt this once you have built the Hyperwave Relay. You can then wait for UFOs to appear and identify its crew for either a Sectoid Commander or an Ethereal. Advance slowly and make sure to take out any enemies prior to engaging the main target.

 Anger Management 
Proc Combat Rush on the entire squad (min. 4)

You need to apply the Adrenal Neurosympathy Gene Mod on a soldier, unlocked by the Muton autopsy. Once on a mission, score a kill with the soldier with the rest of the squad very close.

 Remington… Max Remington 
Have your special-duty soldier kill three enemies in the same mission

This trophy can be a little tricky but can be made easier if needed. Either drop the difficulty to Easy or weaken the EXALT troops before delivering the kill. You can also select one of your better soldiers as the undercover agent and coupled with the Improved Pistol upgrades via the Foundry and a Plasma Pistol, it’s very doable even on Classic.

 G’day 
Kill an elite enemy Sniper with one of your own snipers in single player

Elite EXALT troops don’t appear until late-game. Don’t confuse these with those you first encounter early on as they’re normal EXALT soldiers and does not count. By pressing  you can get detailed information on the target in question. Elite snipers goes down easily enough and with 2 snipers in your squad this shouldn’t be a problem.

 Regenerate This 
Kill an elite enemy Medic with explosive damage in single player

Elite EXALT troops don’t appear until late-game. Don’t confuse these with those you first encounter early on as they’re normal EXALT soldiers and does not count. By pressing  you can get detailed information of the target in question. Elite medics can be troublesome if you don’t provide enough firepower as they will continuously regenerate their health. Finish them off with either a grenade or a rocket.

 Tingling Sensation 
Kill an unseen enemy detected by a specially modified soldier in single player

You need to apply the Bioelectric Skin Gene Mod on a soldier, unlocked by the Chryssalid autopsy. While being close to an enemy without a line-of-sight, the enemy will appear as some sort of energy bubble. You cannot directly target the enemy and neither can you allow the enemy to be seen by any means as that voids the trophy. At the start of a UFO mission advance very slowly; relying heavily on cover and stealth. You can also try this in a suburban area; climb a roof while sneaking close enough on an enemy, and when close enough, use any explosives in your arsenal.

 Pain in the Neck 
Cause an enemy to suicide

When battling the EXALT, simply use the Arc Thrower successfully on any EXALT soldier and he will kill himself. If you struggle with this, either lower the difficulty or research the Improved Arc Thrower via the Foundry.

 Solid Prospect 
Complete Deluge

Missable

This is the second trophy related Council mission and is unlocked after successfully completing Mission Portent, it becomes available after the XCOM Base Defense mission. It’s tricky and I again strongly suggest the use of at least 2 snipers and 1 assault. You need to advance quickly and the snipers will provide much needed cover.

 Ours are the Furies 
Complete Furies

Missable

The third and last trophy related Council Mission and unlocks after successfully completing Deluge. As with the other missions, rely heavily on snipers and advance with a steady pace while utilizing the existing cover. Assaults can be vital here so consider at least 1 while 2 can be an even better option because, as with Deluge, you’re fighting against time.

 Elite Defense 
Beat a new special mission without losing any assets

This can be done during the extraction phase of a Covert Mission. Complete the objectives without losing anyone, the covert agent included.

 Guardian of Earth 
Designate a highly decorated soldier as the Volunteer

Highly missable

Before you attempt this, it’s advisable that you save first. Proceed with awarding a soldier with high will (preferably 80+) 1 medal of each kind, then test the soldier for Psi abilites. The next step is to equip the soldier with Psi Armor, and lastly designate him or her as The Volunteer.

There are 5 types of medals – each type only being available in small numbers.

The medals are:

  • Urban Combat Badge (4)
  • Defender’s Medal (3)
  • International Service Cross (2)
  • Council Medal of Honor (2)
  • Star of Terra (1)

Awarding a medal is a permanent action, thus the absolutely safest way is to save 1 medal of each type until attempting this. Take note that medals can be made available once more, however, that includes having the soldier in question killed, as well as fulfilling the specific prerequisite once more; the Star of Terra being the sole exception.

The Iron Will option, which is strongly recommended, is purchasable from the Officer Training School and helps tremendously to boost the Will when a soldier is promoted – thus the earlier it’s purchased, the better.

 All Hands On Deck 
Get at least 4 kills with XCOM Base Security personnel

During the attack on the XCOM HQ you will be given control of a select few XCOM soldiers, as well as a number of XCOM Base Security personnel. The Base Security personnel are not to be confused with your regular XCOM soldiers you command otherwise. This is due to the fact that they are neither taken from the Barracks or even appear on the Memorial Wall if killed.

Simply weaken any tougher aliens with your main XCOM forces, and then finish them off with the Base Security personnel. Use grenades liberally and even consider to fire point-blank as their aim is abysmal.

CREDITs – Mellenthin

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