Help with reseting stats

I recently tried to modify my way around the long way to 55 to obtain the sniperrifle, as stupid as i was when i changed the XP numbers i prestiged, leaving me at level 1 with no xp and i can't join any servers...

Any takers?

Thanks, in advance
-Kristian Tendal

remember the xp you typed in which you have modified...and reset them ...only works if you remeber ...