Achievements
Complete each achievement to get the allotted gamerscore:
A Little Bit Alien (20) - Modify a soldier in single player.
All Hands On Deck (20) - Get at least 4 kills with XCOM Base Security personnel.
An Army Of Four (100) - Beat the game without buying a Squad Size upgrade (Classic+ difficulty).
Anger Management (20) - Proc Combat Rush on the entire squad (min. 4).
Apotheosis Denied (100) - Deal with the newest global threat.
By Our Powers Combined (40) - Field a squad with 4 augmented soldiers, each with a different base ability and win the mission.
Elite Defense (40) - Beat a new special mission without losing any assets.
Enemy Within (20) - Get a Soldier to have 5 modifications in single player.
Guardian of Earth (100) - Designate a highly decorated soldier as the Volunteer.
G'day (20) - Kill an elite enemy Sniper with one of your own snipers in single player.
Mental Minefield (40) - Kill an enemy as it is psionically attacking you in single player.
Mind the Step (20) - Jump two stories in one move in single player.
Mutatis Mutandis (20) - Field a squad where all members have at least two modifications (min. 4) and win the mission.
Nice Cover (20) - Use Collateral Damage to blow up a car in single player.
Ours are the Furies (20) - Complete Furies.
Pain in the Neck (40) - Cause an enemy to suicide.
Regenerate This (20) - Kill an elite enemy Medic with explosive damage in single player.
Remington... Max Remington (40) - Have your special-duty soldier kill three enemies in the same mission.
Rise of the Machines (20) - Field a squad consisting entirely of augmented soldiers and SHIVs (min. 4) and win the mission.
Shieldbuster (20) - Eliminate an enemy's shield and kill it on the same turn in single player.
Solid Prospect (20) - Complete Deluge.
Someone Your Own Size (20) - Kill a Muton Berserker in melee combat in single player.
Steel Martyr (40) - Deploy three tactical subsystems on a single soldier in single player.
Taking A Load Off (20) - Stop a squad member from suffocating in single player.
The Meld Squad (20) - Field a fully enhanced squad and win the mission.
They Shall Not Pass (20) - Eliminate all alien waves.
Tingling Sensation (40) - Kill an unseen enemy detected by a specially modified soldier in single player.
Where in the World (40) - Make certain of the new threat's location.
Who Needs Limbs? (20) - Augment a soldier in single player.
Zom-B-Gone (20) - Eradicate the infestation.