Hmm i had this happen to me used EAM and got to p10 and i diden't mean to but i did anyways after looking around i think i reinstalled mw2 and deleted 2 things in steam, userapp i think it was not 100% if you download EAM it shows you how to do it i dont have it anymore because it stuffed me around but im sure somone can help or just google around, good luck