Action Alien achievements

45.45%

Warm Trip

Complete the wasteland map.

45.45%

The 2nd Amendment

Use every weapon during one game.

51.52%

Demoman

Demolish a part of a building with the grenade launcher.

57.58%

Rationing

Blow up 8 aliens with one grenade.

78.79%

Cow-Boy

Empty all the rounds of a revolver with only deadly shots in less than 5 seconds.

81.82%

(Almost) Under Control

Kill an alien with the last bullet of a machine gun or an assault rifle.

84.85%

Journey Routine

Kill 100 aliens.