Go to the Barracks and select "View Soldiers". Choose a soldier, then select "Customize". Note: This can also be done from the "Customize" menu at the "Deploy" screen. Unlock the following Hero by changing the name of the soldier to the corresponding entries. Note: This will prevent achievements or trophies from being earned.
HERO - NAME Joe Kelly (Heavy) - Joe Kelly Ken Levine (Sniper) - Ken Levine Otto Zander (Assault) - Otto Zander Sid Meier (Support) - Sid Meie
ACHIEVEMENT - HOW TO UNLOCK ...and Practice (10) - Build a Workshop. A Continental Fellow (50) - Win the game from each of the 5 starting locations. Ain't No Cavalry Comin' (50) - Have a soldier survive every mission in a full game. All Employees Must Wash Hands... (10) - In a single game, complete every Autopsy. All Together Now (10) - Get satellite coverage over every country on one continent. And Hell's Coming With Me (10) - Successfully assault an Overseer UFO. And So It Begins... (15) - Complete the tutorial mission. Angel of Death (10) - Kill an alien while flying. Single player only. As A Scalpel (25) - Earn the "Excellent" rating in every performance category on a terror mission. Bada Boom (10) - Kill 50 aliens with explosive weapons. Beyond the Veil (10) - Find a soldier with the Gift. Combat Ready (5) - Build an item. Drums in the Deep (10) - Gain access to the lowest level in your base. Earth First (60) - Beat the game on Classic difficulty. Edison (25) - In a single game, complete every Research Project. Eye in the Sky (5) - Launch a Satellite. Flight of the Valkyries (10) - Win a mission with an all-female squad. Single player only. Happy to Oblige (15) - Fulfill a Council request. Humanity's Savior (30) - Beat the game on any difficulty. Hunter/Killer (15) - In a single game, shoot down one of each alien craft. Lone Wolf (20) - Clear a UFO crash site with one soldier on Classic or Impossible difficulty. Man No More (10) - Build a suit of powered armor. Meet New People. Then Kill Them. (25) - Win a multiplayer match. No Looking Back (100) - Beat the game in Ironman mode on Classic or Impossible difficulty. Off My Planet (25) - Recover the Hyperwave Beacon. On the Shoulders of Giants (10) - Build the Gollop Chamber. One Gun at a Time (20) - Staff the Engineering Department with 80 engineers Oppenheimer (20) - Staff the Research Labs with 80 scientists. Our Finest Hour (90) - Beat the game on Impossible difficulty. Pale Horse (50) - Kill 500 aliens. Poison Control (10) - Cure poison on five soldiers in a single mission. Single player only. Prisoner of War (10) - Capture a live alien. Ride the Lightning (10) - Build a Firestorm. See All, Know All (10) - Build the Hyperwave Relay. Shooting Stars (35) - Shoot down 40 UFOs. Skunkworks (20) - In a single game, complete every Foundry project. Tables Turned (10) - Shoot down a UFO. The Gatekeeper (10) - Stun an Outsider. The Hardest Road (10) - Advance one of your soldiers to Colonel rank. The Volunteer (10) - Make contact with the Ethereal hive mind. Theory... (10) - Build a Laboratory. Up and Running (5) - Build a base facility. We Happy Few (10) - Complete a mission without losing a soldier. Welcoming Committee (20) - Kill 150 aliens. Wet Work (10) - Complete a Very Hard abduction mission in five turns or less on Classic or Impossible difficulty. What Wonders Await (5) - Complete a Research Project. Worth Every Penny (20) - Acquire 1000 credits in one month. X Marks the Spot (10) - Uncover the alien base's location. Xavier (10) - Mind Control an Ethereal. Single player only. You Have 5 Seconds to Comply (10) - Build a S.H.I.V.
"Slingshot" achievements ACHIEVEMENT - HOW TO UNLOCK
New Friend (10 points) - Complete Friends in Low Places.
Bait the Hook (10 points) - Complete Confounding Light.
The Bigger They Are (20 points) - Complete Gangplank.
Rising Dragon (30 points) - Take your new ally into the final challenge.
All Aboard (30 points) - Complete Confounding Light with more than 3 turns left on the timer.
During a Terror mission that has evil Crysalid terrorists, killing the Zombie Civilians isn't required to finish the mission. As long as all Alien forces have been defeated the mission will end successfully.