Full list of all 21 Reagan Gorbachev achievements worth 1,000 gamerscore. It takes around 6-8 hours to unlock all of the achievements on Xbox One.
Defeat 25 enemies with the bazooka.
Defeat 25 enemies with the grenade launcher.
Finish any level in less than 20 seconds.
Beat the game, save the world.
Answer 20 trivia questions correctly.
Finish a level without killing any enemies.
Discover a hidden room.
Destroy all of the fuel in the fuel depot.
Defeat 25 enemies with the minigun.
Defeat 25 enemies with the shotgun.
Defeat 25 enemies with the assault rifle.
Defeat 25 enemies with the hand gun.
Defeat 25 enemies with the silencer pistol.
Answer 10 trivia questions correctly.
Kill 20 or more enemies on any level.
Defeat 25 enemies with the Uzi.
Defeat 25 enemies with Reagan's katana.
Defeat 25 enemies with Gorbachev's blowgun.
Answer 3 trivia questions correctly.
Complete a level without setting off any alarms.
Complete a level.