Complete the tutorial.
Complete your first mission.
Complete day 5.
Complete day 10.
Complete day 15.
Wait.. where are we?
And my soul from out that shadow that lies floating on the floor..
Complete a mission with just 1 marine in the squad.
Complete a mission with just 1 unarmed marine in the squad.
Complete mission B74-1 without getting any marines killed.
Complete a mission with 3 marines equipped with rocket launchers.
Get an A in a mission.
Complete mission A93-1 in less than 52 seconds.
Complete mission C10-1 in more than 27 minutes and 46 seconds.
Kill a boss vortex alien.
Kill a boss worker alien.
Kill more than 20 aliens in B07-1.
Kill more than 20 aliens in C89-2.
Unlock a sergeant as loot.
Eat a crew member to stay alive.
Unlock and lose all possible marines.. Really, you lost all 38?!
Equip Nye with an Opium Cigarette.
Equip a marine with tea and biscuits.
Equip a marine with a call in torpedo.
Equip a marine with an opium cigarette and absinthe. "Is it a machine gun.. or a shotgun?"
Change the language setting to Ukraine.
You can do much better than that anyway.
Lose the tutorial by having all your marines killed.
Because there is nothing better than hitting the bunk on a full stomach.