Quote:
UPDATE: Angerwound has found a method of transferring your Savegames between profiles, it DOES NOT however work for Achievements and you will need a Memory Unit. Also you will need to delete the profile the save games came from.
-Insert the Memory Unit and go into the Xbox Dashboard
-In The Xbox Dashboard move to the blade furthest to the right
-Select: Memory --> Hard Drive --> Games --> The profile with the game save you want --> The game --> The game save --> COPY
-Repeat the last step for each save game you'd like to copy
-Remove the memory card
-Select: Memory --> Hard Drive --> Gamer Profiles --> The profile(s) the game save(s) came from --> DELETE
-log out of all profiles
-log into the profile you'd like to move the save games to
-insert the Memory Unit back into the console
-Select: Memory --> Memory Unit with the save games --> Select "Unrecognized Profile" --> Select the Game for the save game you want --> Select the Game Save you want --> COPY --> Select the Hard Drive
-Repeat the last step for each save game you'd like to copy
***Again I'd like to point out that the above will only copy game progress (NOT Achievements or anything else), It requires a Memory Unit, and it requires that the profile the Games saves came from is destroyed.