i don't care if this is a crap score for you but this was the best game of call of duty i have played yet
kill streak went from 19 to 27
YEAH BOIIIIIII
uhh i was using scar h with acog for exp since i hate the scar. aa-12 was my main damage dealer since i was in corners and stuff most of the time, and the killstreaks are pretty much optimal. preditor missile, harrier, chopper gunner. it's technically not hard to get a lot of kills, im just not lucky and people gank me anyway.
all you need to do is get a 5 streak, find a safe camping spot, double kill with the preditor to get a harrier, the harrier will rape everything if they don't shoot it down, then 4 kills with the harrier to get the chopper gunner, which should net you a metric fuckton of kills.