Kill your unit during green-red match
Kill two enemies with a grenade/explosion (in multiplayer game)
Kill a unit shooting through teleporter (in multiplayer game)
Kill 2 enemies in one turn (in multiplayer game)
Unlock Frank in mission 3
Destroy Mech Type 1 in sewers
Finish campaign mission 1
Kill Diego Barefoot
Kill Meatshell
Die from OD
Unlock Ayla in mission 7
Have your unit survive burning damage
Unlock Gregor in mission 5
Destroy Mech type 2
Kill one of your own men with friendly fire
Kill four enemies in one turn (in multiplayer game)
Teleport and teleport back in the same turn (in multiplayer game)
Die from mine you planted
Kill yourself with a grenade
Beat the last boss
Kill Gildem Queen
Run out of time during your turn
Kill three enemies in one turn (in multiplayer game)
Kill 100 animals
Kill 50 units with explosives
Finish campaign on easy difficulty
Finish campaign on medium difficulty
Finish campaign on hard difficulty
Kill Evy Barefoot