The Badlands of New Mexico can be quite the harsh destination. If one were to get lost among the mounds and mounds of gravel and sand there's no telling how hungry, thirsty or some other third adjective one could get treading through the hot, blistering sun.
So make sure you keep a map handy! Especially on your firearm of choice; no teling whether that coyote you passed will be friend in need of directions, or foe in need of lead in its furry chest.

A new and improved Topographed war paint, now with new reference to the in-game map loading screen and a third texture!

War Paint base is Necropolish.

For Valve: readme is included with instructions on proper implementation.