An underground railway, played inside the trains and along the track. Two shots are taken in a carriage: pale green panelling and fluted metal skirting, red padded bench seats, chrome grab poles and a double strip of fluorescent tubes along the ceiling, with an advertising panel at the far end that somebody has sprayed over. The other two are in the tunnel, lit only by the carriage windows and a red signal ahead: rakes of stainless steel cars stand on parallel tracks over gravel ballast, and a narrow maintenance walkway with a handrail carries a few wooden crates past them.

The map measures 576 × 5511 × 396 units, which is the shape of a tunnel rather than of a room: about five and a half thousand units long and under six hundred wide, where cs_italy is 2896 × 5216 × 944. Five spawns per side seat 10 players, there is one bomb site, and the map has no buy zones of its own, so the engine places them at the spawns. Geometry comes to 3,260 faces and 52 textures, all packed into the .bsp, close to cs_assault (3,206 faces). No sky is visible and there is no water. The moving parts do the work: 56 breakable objects, 50 doors, seven ladder brushes and six train entities that run the carriages. The archive also installs its own sounds and a radar overview.