In the Map Moonshine(the big one with a green floor) in the very middle of the map there is a rectangular metal hill. Jump to the side and you will see an entrance. Walk in. The floor should be black and there are boxes on all the corners. These boxes can be used to recharge your guns (just walk up to the box to recharge). This place is really good if you want to hide (go into the far corner and nobody will see you in the dark) or just as a base to recharge and an is easy to defend
GamesRadar is the premiere source for everything that matters in the world of video games. Casual or core, console or handheld - whatever systems you own or whatever genres you love, GamesRadar is there to filter out what's worth your time and to help you get even more from your games. We deliver the best advice, the most in-depth features, expert reviews, and the essential guides for all the top games.