Among my fairly dedicated group of gaming friends, I am "Miss Medicine and Supplies". It's amazing how, without meaning to, I end up being the player who goes medic in co-op shooters, tributes supplies in RTS's, buys that extra-special item for somone else in RPG's, and cooks and arranges snacks in real life
It might be because I'm a girl, I don't know. I just know my talents lie in the healing and support areas.
On a tangent, I'd rather like it if Alien Swarm kept track of how many infestations each player has healed, as well as the amount of kills they get. I'm shockingly bad at kills; my friends will get over 100 and I'll get around 10 (literally), but I am an extremely good medic, and people rarely die when I'm around. It'd be nice to get recognition for that.