Killing Floor achievements

49.10%

Straight Rush

Kill the Patriarch Before he has a Chance to Heal.

52.93%

Who Brings a Gun to a Snow Ball Fight?

[2010 Xmas] Kill a Christmas Husk with any Pistol.

53.05%

Merry Friggin Christmas

[2010 Xmas] Kill the Christmas Patriarch.

54.19%

Ringmaster

Kill the "Ring Leader" (Circus Patriarch)

61.31%

A Bloody Christmas Carol

Kill 15 XMas Clots, 5 xmas Stalkers, 5 XMas Crawlers, 1 XMas Siren and 1 XMas Bloat.

64.20%

Social Outburst

Kill 8 Specimens with One Grenade.

65.02%

Trick, not Treat

Kill 5 Halloween Specimens with any gun without reloading

84.17%

It's Not Easy Being Greasy

Cause a Specimen to Die by Luring them into Bloat Acid.

86.47%

Experimenticenticide

Kill 100 Specimens.