(adsbygoogle = window.adsbygoogle || []).push({}); Ok so you need to get any weapon of your choice to 149 kills (and 149 headshots if you want 2000 xp per time)

Then go into a match and when you get the 150th kill press the ps button, the sign out on account manegment. You need to sign back in strait away or you will get kicked from the game after about 20 seconds, watch your xp bar, when it stops changing get another kill with any other gun, then leave the game.

When you check your challenges the 150th kill wont have counted on the challenge but you will still have earnt the xp.

!!WARNING!! : If you do this and the xp bar overfills go into a game and get a few normal kills becasue if it goes upto about -5000 xp you get errors and stuff.

Credit for this goes to King Jamie from elite boosters.

Post back if you eed any help.

Whenever I do this it says "Couldn't get free content pack index"
whats wrong?

When dus it say this??

urm ive had no errors ever ive once got -50000 my xp went on for ages

i got over 900000 xp had no errors at all except when my ps3 shut its self off cause it was hot

already been posted

u cant get 900000xp in cod4

dude this on on other posts just search lol duh i have known this for a while now lol