Playing The Giant and going for round 20 - 30 is pretty good XP. Make sure to get gun challenges done too.

Thanks bro will do, appreciate it

Just playing the game and getting to high rounds. Weapon challenges are low exp, 50, 100, 150, 250. I am being a completionist and have just now have finished every weapon level. Took me until my 7th prestige. All I have left to do is finish up 2 gumball challenges and 3 prestiges. Just play the game Aim for the head as eachshot is 75exp. Normal kills are 50exp each. Headshots are just a good practice to do because it not only saves ammo, but is more exp Any weapon with double tap and PaP will be good till 25-30 easily. Just avoid the obvious bad weapons and you can camp to 40 with ease

Thanks bro, that's really gonna help so Much