Item description:

This player file will unlock 610/1000 as soon as loaded. DO NOT USE WHILE SIGNED IN! Unless you want all these to show as unlocked in 1 sec. Step one, create a brand new BR save file and get the title update. Step two, connect the storage device that said save is on to your computer. Step three, decompress the player files rar file and place in the correct game folder, . Step four, connect device to 360 and go to the memory section and look for the BR save that says BlueShadowzGod, select that you want to move the save, but just select the storage device the save is already located on. Click move. Done, save is now resigned and ready to use.

As for the other 390, the achievements for 50 races won, 1000 takedowns will unlock after getting just one. The 610 that unlocks first ALWAYS unlocks in the correct order. Certain achievements, like celeb status must be done legit, as it has to be done at least once to unlock.

NOTE: When you "move" the save, you want to be signed in to the profile that you are doing the achievements on.