I typed in my code to redeem it, and it said "Invalid Code". Is this happening to anyone else? What should I do?
Are you sure you double/triple checked the code was in right? That's the only thing I can think of that would result in it not working. I highly doubt you got a defective code.
Yeah, I got the same problem, what I did is download it through the internet: Xbox LIVE Marketplace | Halo 3: ODST There, I pressed the button 'Download to Xbox 360' , after which I selected 'redeem code'. Hope this helps.
...I've had him for about 2 weeks now. I didn't see the little tab you had to rip off, and was entering the Proof of Purchase code instead.
Just wanted to let you know that there will always be a little tab that you have to rip off for Xbox 360 code things.