- last post: 01.01.0001 12:00 AM PDT
Well maybe he means the Yellow banshees and not the mythical Golden banshees since he said Yellow.
I'm guessing you mean the Yellow banshee on the Halo 2 level The Great Journey.
I don't remember exactly how since it's been ages but I think you can get it on any difficulty and it's pretty easy. They show up at the base of the cliff just before the beach.
More fun is the indestructible banshee you get once you're on the beach. Just get down there and destroy your own banshee you flew in on and eventually an friendly elite flies a banshee in and gives it to you. It can't be rendered unflyable.
A search of High Impact Halo site should find exact means of getting the Yellow banshee.