Link
Gives you an increased rate of fire bonus after a quick killing spree.
Video demonstration:
http://www.youtube.com/watch?v=sqXOrLjhe2w
Killing KILL_REQUIREMENT other players in under TIME_REQUIREMENT seconds
sends you into a rampage lasting RAMPAGE_DURATION seconds.
The rampage refills and drastically increases your weapons' rate of fire.
By default this means 3 kills in under 8 seconds to activate. For reference,
lines disappear from the killfeed 10 seconds after they appear.
Intended for use in frantic last team standing or free for all matches.