matt247 on 19 May 2009
There was a title update to prepare for the DLC, so there could have been more code in that update. These are just new modes, so they won't take up a lot of space, since it's just rules they are programming in. It's not like there are new maps which would take up a lot of space. Besides an unlock code would only need to be like 400k. Also remember a new developer worked on the DLC, why would MS pay them money to make new DLC if it was already in the game. Programers know that there will be DLC in the future, so they'll try and make it as easy as possible.
