Tbh, I'm fine with vet how it stands at the moment. It tends to make you a bit more survivable at vet 1, makes you stand your ground better at vet 2, and let you give out some punishment at vet 3. My only gripe is that I have to go back to the launcher to get to the next veterancy level after vet 1.
We're working on getting this out of the way for you guys pretty soon.