Hmm... That's a good idea. I didn't thought about it. Maybe I will use one of those Ancient ships. Transformed it and add more turrets then re-texture it. Thanks JSR.
By the way, I am "dissecting" the BTA missions to learn some techniques in mission designs. There's a lot of good stuff in there. I practically merorized every SEXP and know what its for but I don't how to apply some of them in a design. I tend to use the simpler approach.