XCOM: Enemy Unknown Guide

IMPOSSIBLE Research, enemy, Base defense and achievements for XCOM: Enemy Unknown

IMPOSSIBLE Research, enemy, Base defense and achievements

Overview

Just a guide for myself about many things in X-comPlease Give a like!If I could make a request to the Xcom fans, could someone please make a ghost armor mode for Xcom 2?I would do it. However, I don’t have the expertise in the area.Note: This guide will be updated

Basic research

Research
Alien Material Xenobiology: some people say if you unlock this early you get a quest where you give a sectoid and receive 2 scientists
Meld recombination….. Adaptive bone marrow (15 meld) Gene mod and Mechanic Soldier
UFO power source is very important for Titan armor.
Titan armor ($150 cost) : carapaces and need elerium. To unlock elerium you need UFO power source
Firestorm: you need elerium for it as well.
Ghost armor: need Titan armor + hyperwave communication build (need hyperwave beacon research). Hyperwave is during the Alien base assault mission. Cost 50 ellerium and 40 alloys
Ghost Grande: seeker autopsy. You need 4 seeker Wrecks. Therefore, do not sell any nor give it as requests
seeker autopsy also gives mimetic skin
secondary heart….cyber disk autopsy
Muton research unlocks: Adrenal Neurosympathy and ammo conservation.
Neural damping (immune to mind control) …..Berseker
Neural feedback sectoid commander
Psi armor….need Psi research you need ethereal device research

4 facilities for story: alien containment, hyperwave relay, Gallop Chamber, Psionic Labs

source: xcom wiki

Enemy hints

Enemies to watch out for:
Sectopod:
Sectopod will appear once you research heavy plasma!
Sectopod strategy: (Cannot be mind controlled)
-Use Sniper dis-abling shot
-shredder rocket from the heavy squad
-Rift ability from the Volunteer can do a lot of damage to sectopods. The use can either use smoke grenades or telekinetic field to protect the volunteer
-MEC electric pulse can inactivate the sectopods. Sectopod can still cluster bomb (See wiki link)
-Use Ghost grenade.

NOTE: Be wary of sectopod doing cluster bomb attack. How can you tell? Thanks to the wiki
[link]

Biggest WARNING: if the sectopod does not move!!!!
-1) If the sectopod has not moved…..it is preparing for cluster bomb or it can fire 2 times in the next turn
-2) Run your assault with lightning reflex to see if Sectopod is in overwatch. If not, cluster bomb time.
-3) Even if the allies of sectopod see you while sectopod cannot it may use cluster bomb.
My own solution: if you are going to use ghost grenade then get very close to sectopod so that the cluster bombs do not reach you or save and load to see where it targets
according to the wiki: Sectopod leands forward and we see red/orange light and camera moves to target area of attack for the next turn

Mechtoid:
-Use strategies above
-BUT Can be mind controlled
-Note: according to the Wiki , if you do not use explosive against this enemy, you will get 5 extra meld.

Other notes

Make sure you enable operation progeny in the advanced second wave option to get Annette

Base defense Mission

Before hitting Alien base, I recommend getting Titan Armor and having laser
Base Defense ( Happens after Alien Base)
Do NOT make items available.
Top 6 soldiers will be selected that are not injured, not going genetic modification not undergoing Psi test
After the first alien base assault, make sure to research heavy plasma, sniper plasma , alloy cannon (if possible but unlikely)
Snipers (with in the zone perk can eliminate up to 3 enemies per turn), Rookies on top. The higher ground will give rookies an aim bonus

Your support should be in the back furthest away from aliens. I recommend health kit and ghost grenade. The deep pocket allows 2 uses of the ghost for a tight situation
Heavies should be placed on the solid cover that you can see below

Mec Trooper should be preferable level 3 and have particle cannon if possible. I prefer Kinetic strike

Change resolution

How to change resolution see this discussion
[link]

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