An experimental Forerunner testing ground left to the hand of nature and the exploration of by Human and Covenant.
The map has a steady flow for vehicles with many routes, you can even take a vehicles through a teleporter. The tank and wasp will be your best tool but due to the structure of the main Island maneuvering with a larger vehicle is tricky. The same can be said for the wasp as you have to weave yourself through the tight spaces or remain out in the open.
The open spaces are a problem for Spartans as well even with the darkness helping you, a sniper or oncoming vehicle will get better of you.