Originally Posted by FarmerJay
I helped 1 friend get this one yesterday in the town with the cannons. In a PRIVATE match. He was on the gattling gun by the front entrance and I just killed everyone who tried to come in the back, while on foot. it took him about 45 minutes to go from 0 to 500 kills.
thats pretty good going really ill need to do this sucks you cant get it by replaying missions =/, would make things so much simpler