I heard that once you got to rank 12 in CoD4 MP, you could unlock a "Clan Tag" feature (I'm on rank 18 now). How do you use it? I've tried looking everywhere in the main menu, but I couldn't find it.
i've never heard of such thing, at least not int the pc version
so i looked it up on charlieoscardelta and this is only for consoles (ps3, x360). i gess reason is you are restricted to ur account name