i know what you mean, but once I understood the whole map, I was surprised that I didnt understand it earlier. The thing is, even though there are a bunch of doors in the map, you will never have an option to open more than one door at a time. Pretty much, the main objective of the map is to get to the power room by opening doors. Once you get to the power room and turn on the power, you have access to the mystery box, zapper, and purchasable perks.
yea undecided ae, loved the first map but im saving the money for BIA2 and also I enjoyed the fact that you didnt need to play online in the first map, you could play it by yourself fine which means you could play anywhere (i dont have an iphone). sounds like in this map you cant really go for too long, it sounds like you need teamwork to survive.