I love the classic playlist. It takes me back to the Halo 1 days.
My suggestion would be to add more ammo to the pistol, or put the pistol on the map so I can pick up more. It becomes a problem on bigger levels such as Hang'em High. This is just a thought
(i looked for this topic in other places and didnt see it. If has already been talked about, please point me in the right direction!)