A millitary Vehicle MLRS (Multiple Launch Rocket System)
i know this isn't about your specific render, but i can't use these in blender, what program do i use?
Just use Blender render
Brilliantly done :) I think you could make the "tank belt" (I think that's what it's called) http://i.imgur.com/3Qxgq.png a darker green! Great Job other than that.