Modern Warfare 3 . Most Kills In "Call Of Duty: Modern Warfare 3" With A C4 Explosive Ronnie Dalbianco Ronnie Dalbianco had 1,992 kills in Call of Duty: Modern Warfare 3 using a C4 explosive. Highest Score In Combat Training For Three Minutes On Recruit Difficulty In "Call of Duty: Black Ops" ProdigyAuT ProdigyAuT scored 11,200