like jamez said so many times before Gunboats need shield busters..and i dont mean tiz or colada i mean somethink like inferno or inferno cannons...gunboats are only ships without shiled busters for that class of ship..
there are a lot of talk about balance but i dont see balance there...(one fighter can do much more shiled damage then GB)
i propose following:
just make one inferno cannon with same shiled damage as normal fighter does, one shot per sec and power consumption about 60000...so fighters cant mount it...
and make it class 10 turret...