Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Body Snatchers	Teleport 20 times in a single match.
Buzzkill	Unknown.
Death in a cornfield	Completed 50 games.
First Contact!	Completed your first game.
Invaders from Beyond!	Completed 100 games.
Return to hell!	Unknown.
Run, dont hide!	Run 5 miles in a single game.
Survival of the fittest	Win a match in 10 seconds.
The terror, the terror!	Completed 10 games.