There's two ways you can do it. One is to have two Gold accounts signed in. Both of you will earn XP, achievements etc. as you'd expect. Or, if you just have a friend over, you can have a guest sign in and play on a temporary profile, piggybacking off your Gold account. Anything he earns is temporary but the main account's progression is unaffected.Triple Oceans said:I gotcha. But isn't that what Hi-tekk had originally asked anyway? Did Willeth just answer his question twice?
Halo 3, ODST and Reach did this previously, and I believe Black Ops did too.