Talk:Assault class/@comment-65.75.234.251-20141027052103/@comment-94.112.28.16-20141028011222

Hmmm, so with Killing Spree at level 25 you need to kill 20 zombies inside only 4.40 seconds to activate the Killing Spree buff, and then that buff also lasts 4.40 seconds? I think OP's question is valid as that isn't really clear from the tooltip description on its own.