I can't think of too many, but I have some from L4D/L4D2
"Jumpin' Jehosaphat, CLOWNS?" ~ Coach
"I have not.....come this far.....to die now" ~ Nick
"We look after our own" ~ Bill
"I'll see peace back on Earth if I've gotta murder every one of these bastards with my bare goddamn hands!" ~ Bill
