If you tried to download the Call of Duty 4 Variety Map Pack over Xbox LIVE Marketplace and were given the "invalid code" message – like I was – Infinity Ward’s Community manager, Fourzerotwo is telling people to give it another go today. It seems they were having a few issues but everything seems to be cleared up now.

Just a heads up that it looks like Marketplace is back on it’s feet and running as normal.



You should have no problem buying or redeeming the new Variety Map Pack. If you tried yesterday when it was down and received an Invalid Code error, be sure to retry today with the same code.



If you received the Error Message that your code was already used while it was down yesterday, just attempt to re-download it via the “Download Maps” option in-game or on the marketplace."