Its no issue - TOG is a huge world
The forum is split up into areas. The Battlefield 3 area (BF3 Division) is linked here
. Just post a thread up asking for a co-op buddy. There are more than 300 Toggers playing BF3 so you should pick someone up.Or get into Team speak and ask there.
To find the other areas of TOG just go to the MY TOG (top right of the forum) and click Forum Home