While doing some preliminary ship designs for what I hoped would be the first onslaught of SUE supplements by yours truly, the ships didn't feel right, mainly because I was conflating a few different ship design ideas--one battlecarrier-style setting, one with massed seeker weapons, and one with heavy seekers that rely on saving rolls than swamping the target. It was while jotting down the different possible iterations that I had an epiphany--namely, that last setting could be a setting based on the RCN-verse of David Drake. It wouldn't be a perfect fit, but UE offers the closest possible conversion.
1) Missiles would be 1/3/2 or 1/3/3, Kinetic, Modulating (to give a truly heavy wallop that ignores shield values, and also to really pile on the modifiers to the saving roll)
2) Plasma cannons to be dual-mode. The main, defensive mode would have Defensive and Pinpoint, with the lighter cannons having an IMP of 1, while the 6" and 8" would have higher IMP values but lower ROF. The secondary mode, the offensive mode, would be short-ranged in order to model how most long-range actions are decided by missile engagements.
I'm not sure how to model the effects of sails (a true-to-the-setting conversion would reduce the arc of plasma cannons but offer screen effects against plasma cannons), but that's what this 'ere thread is for--to kick the ideas about.