Should be able to use default game types. Contains all the weapons as Reach. The Grenade-lancher is replace with the Sticky- Detonator. Map has been updated to have the same weapon spawn times as Reach. Download link may not work.
I wasn't much of a fan of this map in Reach, but in terms of forging, it looks spot-on. Maybe the slime (or whatever that is) at the bottom or the brown pieces will give the map a new feel.
Ditto, squid. The In-game forge maps in Reach Bblew chunks, but there's none in H4! Maybe they will add THIS to playlist!