So my friend is coming over with his Guitar Hero II controller so we can finally get some co-op going. We're probably going to get a co-op Achievement or two, but since we're at my place, he wont get them on his tag.
Is there an easy way to get his tag on my machine? I'm not quite sure how it works. Something with Recovering gamer tags?
Would it be a pain to get his tag on my machine only to have him get it back on his tonight?