Recovering gamertag on Halo 4

Has anyone recovered their gamertag to play H4 on a friends xbox? There’s quite a few bugs in this game at the moment and Im worried that recovering my gamertag will result in me losing something (ie commendations, challenges etc.)

Has anyone done this? Am I being paranoid?

I’ve done it, and it doesn’t seem to port over any of your unlocks, armor or stats.

Supposedly, you have to format a flash drive and “move” your profile from your Xbox to the flash drive and then to the other Xbox. But don’t forget to move it again before you leave, otherwise I think you won’t be able to access your profile from you home console.

Talk about a stupid hassle. Should be just like Reach.