About This File
This is a very good map. The goal is to destroy the "enemy main base". But you must pass through 3 other oponents (the map is only 4vs4, ofcorse you are free to play it in any way but it will be no fun) The same is for your oponents. Base 1 is the most important base cuz that is the only way you can pass. The most dificult thing is to takeover the center base (base 1) cuz if you have luck you will battle 4 oponents 
and with towers and all extras(for the oponent. Thats why i aways use the Atack Here button 
.Its important when you take over the enemy center base to build your own there so your allys mey defend it and use it as a "relaxation point" to recover(and it will be more dificult for your oponent to go to your Base 1, and he wont be able to ambush ur base. When you take over B1 you can take a deep breath and sent a small group to take over base 2 and 3. But have in mind taht the AI`s like to build huts all over the bases 1,2,3,4 but that wound make much difference if you have their B1. The map isnt best of looks but the battle is what is important here.
Have fun.
PS: I`ve had the idea from UT2004!