Awesome. great job!
The ship fleet is simply awesome. He'll you can even add some sort of TSA logo and that could be a suggestion of the TSA fleet ships in NS2!! (you know.. supposidly its supposed to be a war or something?) Or even a ship that could be used as a map in the current NS.
walker tank is alright... reminds me of a upsidedown dragoon in a way. Either way, its still cool
keep it up