[quote][b]Posted by:[/b] LowScorch90210 I have the snealy feeling that the campaign and firefight might be on two seperate disks on accout kind of like odst it will be interesting to find out[/quote] I don't believe so. If you remember ODST had improved art and graphics then Halo 3. Therefore the two engines were not compatible on the same disc and Bungie decided to move everything not included with ODST's improved H3 engine onto a seperate disc. Of course, I could always be wrong but I'm pretty positive that's it.