Hey I got the new Halo 4 Xbox last Christmas and didn't play halo 3 ODST for a good while cause I was playing Halo 4. Then I started playing Halo 3 ODST again then when I went to play fire fight my sergeant johnson character was gone At the start I thought it was because I diden't transfair the memory right but i double checked and all my other games have everything all the DLC. So is there a way I can fix this??