Marusame

Its been broken for awhile for me too, i can add my points but the sign in with my gamertag button doesnt do anything, ive tried with all the browsers i have, and without any adblockers, and even vanilla IE9, and now IE10 (since i recently upgraded to Win8 "havnt the foggiest idea why i did it")

I cant apply mine, sign in button isnt working, i heard MW3 had the same issue so it may be a couple weeks before that button becomes active