Have you read any of the technical magazine articles I've
written, particularly the ones about ship design? They're available
from the Galac-Tac page of the web site if you'd like to look through
them. I have one more article that's not there that was written but
the magazine hasn't been published yet - it's about "initiating
combat". But as for ship design, everybody likes to do things
differently, so the best bet is to just leap in there and try things
out. Especially in a solo game, there's no harm in messing up
really badly and starting over with better ideas next time.
In general, combat is easy. Send ships to a contested location with
Attack or Secure orders. They'll fight and you'll see what
happens. By trial and error, if nothing else, you'll begin to see
what works and what doesn't in various circumstances. Most combat
in Galac-Tac is one-sided: warships vs. non-combatants. And most of
the rest of the combats are overwhelmingly resolved one way or the other
(dozens to hundreds of ships vs. a few, for example). Only in very
few circumstances will there be any difference in outcome based on HOW
you do your combat, and you'll learn about the ins and outs of that over
time. Many times you'll just be sending in one tiny ship with guns
to blow up one cargo vessel, and there isn't much sophistication needed
for that.
Genny or I are available any time you have specific questions, but it's
often better if you at least try to figure out strategies yourself.
You may come up with something completely different than has been tried
before. And you may surprise yourself with how well your own ideas
pan out. In Galac-Tac, there is no right and wrong way to do
things, so almost anything works in some particular circumstance or
another. So there is no arbitrary "best" to be working
towards, especially when you play against other humans. Figuring
things out as you go is part of what the game's about.
;-)