They do however show up in the urban type of map. There is an in-game tutorial on how to use the tunnels. Ore is scattered and sparse. You get a free radar screen, but its still part of the build tree, so you still have to build one sooner or later. There are other goodies on the map to keep your interest up.
Lighting is set for jungle ambience and background sounds are scattered throughout the map.
Oil derricks and airports abound, plus some other goodies. Turn your music volume down to around 3 or 4 on this one and enjoy the sound effects and background ambience. The cars move around the map but normally don't enter your base unless forced to. Readme files included. This is a small urban map with a war munitions facility in the middle and ore in all four corners.