New here. is it possible to give this away?

Can the key be redeemed on Steam?

no idea. the game apears on my steam so I don't know if yes or no i'm actually quite new to this whole thing

check the list on the "create a giveaway" page and see

Vietnam is the better part of BF2 multiplayer. I wouldn't give it away.:-P Also, according to your steam profile, it's registered to your account, so no, you can't give it away.

aparently it let's me create the giveaway so does that mean I can give it away, or will the winner be greeted with bitter disapointment?

please tell me before the giveaway starts so I can remove it or should I let it roll?
giveaway here http://www.steamgifts.com/giveaway/F7RT6/battlefield-bad-company-2-vietnam

Your giveaway has been removed.

I was tempted to be snarky and mean about this, but you seem like a genuinely nice guy with good intentions. See the helpful image Snorkel provided on how to see if you have anything you can gift (you aren't obligated to do so, remember). Also, read the FAQ if you haven't already :)