[Alneyan]

Do Repulser Beams require your ship to be bigger than the target, or is it enough to be as big as the target? (So can a Dreadnought repulse another Dreadnought?) If you have to be bigger, it will require bases or Baseships, and the latter would not be your best notion in this situation.

Wormhole beams do not have this limitation, and would do the trick on defence. Beware while being on the offensive however; you could very well send enemy ships near your support ships, which might ruin your day. (You do not want to lose these minesweepers after all)