My Tips/Tricks for 360/PC
I can go from level 1-50 in just a few hours. My gamercard on 360 shows that I only played for 2 days and 11 hours and I'm level 3 prestige at level 45. I am 100% legit, don't glitch or hack.
This is how I do it.
FIRST I MAINLY USE THE SCAVENGER OR HARDLINE
2nd I USE SPY PLANE, SAM TURRENT, AND THE ATTACK HELICOTPER FOR MY 3 KILL STREAKS
3rd I DONT CAMP
Level 1-12 I use MP5k and M16
Level 14-21 I use the ak74u and famas.
Level 22-32 I use stoner/AK74u/famas/galil/AUG(my 4 main classes)
Level 33-44 I use all level 22-32 guns, and ak47 and spas
Level 44-50, all the other guns+commando
Level 44- Commando w/ silencer and acog scope
Secondary-Dual Pythons
Tactical equipment-Claymore
Perk 1-Scavenger
Perk 2-Speed Reload Pro
Perk 3-Hacker
Just decided to share