An Army Of Four
100Beat the game without buying a Squad Size upgrade (Classic+ difficulty)
Unlocked: 18 Oct 2015 16:10:09
Designate a highly decorated soldier as the Volunteer
Unlocked: 15 Feb 2014 18:18:08
Kill an enemy as it is psionically attacking you in single player
Unlocked: 15 Feb 2014 01:48:33
Deal with the newest global threat
Unlocked: 15 Feb 2014 01:39:22
Complete Furies
Unlocked: 15 Feb 2014 01:15:14
Field a squad consisting entirely of augmented soldiers and SHIVs (min. 4) and win the mission
Unlocked: 15 Feb 2014 01:13:18
Field a squad with 4 augmented soldiers, each with a different base ability and win the mission
Unlocked: 15 Feb 2014 01:13:13
Kill an unseen enemy detected by a specially modified soldier in single player
Unlocked: 12 Feb 2014 02:35:50
Cause an enemy to suicide
Unlocked: 12 Feb 2014 02:33:02
Make certain of the new threat's location
Unlocked: 08 Feb 2014 23:22:36
Complete Deluge
Unlocked: 08 Feb 2014 22:50:31
Field a squad where all members have at least two modifications (min. 4) and win the mission
Unlocked: 21 Nov 2013 04:01:38
Field a fully enhanced squad and win the mission
Unlocked: 21 Nov 2013 04:01:33
Enemy Within
20Get a Soldier to have 5 modifications in single player
Unlocked: 21 Nov 2013 03:16:36
Eliminate all alien waves
Unlocked: 21 Nov 2013 03:13:21
Get at least 4 kills with XCOM Base Security personnel
Unlocked: 21 Nov 2013 02:36:18
Have your special-duty soldier kill three enemies in the same mission
Unlocked: 21 Nov 2013 00:23:18
Proc Combat Rush on the entire squad (min. 4)
Unlocked: 20 Nov 2013 23:07:39
Steel Martyr
40Deploy three tactical subsystems on a single soldier in single player
Unlocked: 19 Nov 2013 04:13:18
Kill a Muton Berserker in melee combat in single player
Unlocked: 19 Nov 2013 03:01:16
Jump two stories in one move in single player
Unlocked: 19 Nov 2013 02:58:42
Kill an elite enemy Medic with explosive damage in single player
Unlocked: 17 Nov 2013 16:23:51
Kill an elite enemy Sniper with one of your own snipers in single player
Unlocked: 17 Nov 2013 16:02:42
Beat a new special mission without losing any assets
Unlocked: 16 Nov 2013 22:47:26
Shieldbuster
20Eliminate an enemy's shield and kill it on the same turn in single player
Unlocked: 16 Nov 2013 21:54:27
Zom-B-Gone
20Eradicate the infestation
Unlocked: 16 Nov 2013 21:36:56
Nice Cover
20Use Collateral Damage to blow up a car in single player
Unlocked: 16 Nov 2013 20:05:36
Augment a soldier in single player
Unlocked: 15 Nov 2013 02:44:05
Modify a soldier in single player
Unlocked: 15 Nov 2013 02:43:17
Stop a squad member from suffocating in single player
Unlocked: 13 Nov 2013 03:58:44