Personally, I would stick around for a little while, but only if the xp earned is a derivative of 5 or 10. The code allows for a max of 9999 XP for each kill. If this is the case then it would be obvious you got the XP from cheating, whether is was you or someone else. I'd probably use it to at least get to level 41. I've had the game since November and I'm still level 39 cause I don't have the time to devote to the game some people have. I'm tired of slogging my way through these levels. I'm here to have fun, but I'm sick of my mediocre weapons.