A great level to use if one needs to learn about light sets and their states. This level is a small network map that gives the player the chance, "to follow bread crumbs" to get to the other marines. The "bread crumbs", are light sets that come on and go off as you enter and leave the areas of the map. Very good idea, and well needed. I know personally that I have been experimenting with light sets, and this map was a good guide. Supports Emfh and KtMwTB.