How does the “Kill-Count” work?

I use the G-6 for the same reason. Here lately, everybody seems to be. (PS3, but it doesn't matter). Every game I get in the last week is loaded with G-6 and K-4. It's the guns. They are the best in game. I'm blowing wings off at 1000 yards. No kidding! My kill count has doubled since switching from the LA5. The best pilots on PS3 are now using it to my dismay.