dudycat

I bought the game (Operation arrowhead) two days ago on steam, and have been playing on the singleplayer modes since, but today i decided to try to play multiplayer with my friend, and too my surprise i was a crow, this wasn't just on one server though as i found out that i was a crow on all of the servers we tried to play on, so my question is is there anyway to fix this? (i don't have any expansions or ArmA 2 normal.)