Halo Reach Map I'm thinking of

It was a small map on top of this mountain, it had a base in the middle with a shotgun and at each end of the map it had these two blue lifts that would shot u up into the sky, it was constant action and was taken off the multiplayer when the map packs came up. it was the first string of maps that came with reach. i want to recreate it in forge and need the name of it so i can look it up.

Was it Cliffhanger?

http://faqsmedia.ign.com/faqs/image/article/112/1122052/map_cliffhanger.jpgOr Atom?

http://www.hectormadrigal.com/wp-content/uploads/2011/03/halo_reach_map_atom2.jpgEither of those two look like it?