Back in the day you didn't need to really farm "hard" to rank fast, There was no cap on EXP. 12 minute rounds would get you epic amounts of EXP. These days though with the cap, you play 150 kills cap at 1100 EXP then spend 45 seconds on score card, readying up and loading. You can't lvl no where near as fast as back then cos literally 1/3 to 1/4th of your time is spent not killing =( I miss the old day's. He has 366010 kills -.- I have that and I'm only LT Col *Cries*
Edit:
Actually, Looking at it now. His account must be glitched or something. He has a lot of weapons that only came out last year =/ Halo Kris, Galil ARM, AWM red dragon. All are more recent guns then 2011.