It Increases magazine size, rate of fire, and damage. On Black Ops, it gives some weapons precision reflex, red dot, Or ACOG sights. It also gives the G11 a low power scope. And does other things...
It all depends on what map you're talking about. In "Der Reise" you must link the three teleporter pads to the mainframe. In "Kino der toten" you need to link the teleporter to the mainframe in the...
The Pack-a-Punch Machine (PaP) upgrades your weapons. You first have to activate and link all three teleporters to the mainframe and then the door to the PaP is opened. For 5000 points you can...
Get an Awful Lawton, trust me it's not awful, crossbow on it's own fails on zombies, but with it pack a punched the arrows are like monkey boms, and can kill 6 zombies at once.