just came across this method in another forum.
here are what you have to do to get a key:
1. go to http://www.gamespot.com/event/codes/...onquer-4-open/
2. make a new account or use one you already have to get the beta key for cc4. (16 characters not including dashes)
3. use your beta code at www.medalofhonor.com/beta
Check gunclub.ea.com to see whether or not you have BC2 tied to your account.
I am in and it works lol