Top 5 ways:
#5: Search and Destroy game type
#4: Nuke Boost
#3: Riot shield boost
#2: Cage Match (patched)
*1: Modded Lobby
Hacking or killing
The fastest way to rank up in cod6 to me was to get 500 kills with guns. you earn 10000 points every time you do this. JoeyGil's Answer: Nuke Boost ;)
You rank up the same speed through out all prestiges
The fastest way to rank up is to boost in campaign. Search "halo reach campaign boosting" on youtube =)
i ranked up pretty fast with headquarters i rank up fast in search and destroy
u can go to arcangrove and defeat gorrlifant and plants
do all the rep and daily quests each day
By ranking up to a certain level ( i think it is rank 2 or rank 3)
my favorite is search and destroy also demolition
man ... in cod4, infinity ward didn't focus on offline multiplayer so you cant level up but in cod mw2 this problem is over ... GHOST out . (overlord mw2) EDIT BY SOMEONE ELSE: The only way you can is to hack or mod, I dont know how so get black ops when its out or get MW2
You can play the game legit!! or tactical insertion boost with a friend!
Fastest growing pvt institute of UP. Excellent placement cell.