How can I get the find all five guns in Battlefield: Bad Company?

I know that some of the weapons were unlocked only by doing certain things such as checking your stats online after a game, preordering the game, getting to rank 4 in the demo, etc.



But now that this game is already out and the demo server is down, is there ANY way for me to get the guns that you unlock by pre-ordering the game and by getting to rank 4 in the demo?How can I get the find all five guns in Battlefield: Bad Company?
There's codes:

Recon Kit - QBU88 - your3mynextt4rget

Special Ops Kit - UZI - cov3r1ngthecorn3r

Support Kit - M60 - try4ndrunf0rcov3r

USAS12 for use in multiplayer - Enter the code: aw3somef1rep0wer

http://badcompany.ea.com/news/entryid/25鈥?/a>



The fifth weapon can only be unlocked if you are a battlefield veteran.

http://badcompany.ea.com/news/entryid/24鈥?/a>How can I get the find all five guns in Battlefield: Bad Company?
There's codes:

Recon Kit - QBU88 - your3mynextt4rget

Special Ops Kit - UZI - cov3r1ngthecorn3r

Support Kit - M60 - try4ndrunf0rcov3r

USAS12 for use in multiplayer - Enter the code: aw3somef1rep0wer t you can go to battlefield .com to become a veterin its easy even f you dont have anyother battlefield games