User blog comment:Deathmanstratos/It's confirmed, you have to rank up to unlock weapons./@comment-97.96.24.127-20100907222123/@comment-1079585-20100907222411

There are only 50 levels, the lowest amount of any CoD game yet. Besides, if you don't like multiplayer then A) why do you care and B) why do you buy CoD games instead of just renting them (assuming that you buy them)?