It is Milkshape :|
May I strongly suggest modeling in Maya or even a pierat copy of 3dsMax?
Really now, Milkshape is as hideous as it can get. And it lacks a lot of functionality too.
Now for the model. It looks good and tidy as far as I can tell.
8 guns are too much, even if those 2 turrets fire backwards. 6 guns (2 Class 9's and 4 Class 10's) are much more reasonable.
Also, the stats are too buffed for what you want it to be. Which is a multipurpose ship. Which will not happen.