Support, because you can hold more weapons, more grenades and more ammo.
If you mean how can you level up your perks in killing floor? Check your perk list and on a window it'll show the requirements to do in order to level up a perk...
The duration of The Killing Floor is 1.57 hours.
The Killing Floor was created on 2007-05-21.
To buy the game Killing Floor (or atleast one way to buy it) is to make a Steam account which is free. Then search the store for Killing Floor and...you can do the rest probably.
Killing Floor - Bruce Dickinson song - was created in 1998.
AnswerFirst of all, he is talking about perks not attachments. The best perks would Lightweight, Steady Aim and the third one could be what ever.
Killing Floor - Howlin' Wolf song - was created in 1964-08.
NO
The cast of Killing Floor - 2009 includes: Marianne Graffam as versch. Frauen Deutsche Version
It is the area within a slaughter house used for the killing of animals.
Simply completing challenges on weapons, air support, perks, etc and by killing enemies
The game-developers are called TripWireHowever, if you mean the novel Killing Floor then it was written by Lee Child. And the book and the game are completely different from each other.