Classification: Ranged fighting
Tactic: Hold the distance the guns were built for
A gunner ship wants a gap and means to keep it. Railguns, beams, batteries that reward a steady hand. The armor is ordinary. The mass went into the guns, not into being hit.
They get unhappy when something closes to spitting distance and the long gun stops being an advantage. Unhappy captains make bad choices. The captains who live through a gunner do not trade shots from where the gunner is comfortable.