BlackRock Cave is a small inclosed map, built for free for all games and game variants. The map has three levels, all of which give enough room to menuver. The map is clean built and decorated.
below is a list of what weapons and features each level contains.

Level 1- DMR 1
Needler 1
Plasma Repeater 1
Rocket launcher 1
Spiker 1

Frag grenade 2
Plasma grenade 2
Health station 2

Teleporter to second level (two way)
Grav lift to third level

Level 2- Assault rifle 1
Concussion rifle 1
DMR 1
Plasma Repeater 1
Shotgun 2
Spiker 1

Frag grenade 3
Plasma grenade 4
Heath station 2

Teleporter to third level (two way)
Grav lift to third level

Level 3- Assault rifle 1
Needler 1
Needle rifle 1

Frag grenade 2
Plasma grenade 2
Health station 2

Pitures:

Download link: http://www.bungie.net/Stats/Reach/FileDetails.aspx?fid=17247069&player=NecroAscendant