Some feedback from a fellow player that I haven't done enough to help seeking-weapons races in campaign play (they suffer a bit as crew quality scores increase - I agree, though I don't really see how to remedy that very well, especially not with something as limited in effect as an alternate upgrade table) and that the Reconfigured Plasma Torpedoes bit and Tactical Genius bit might be confusing. I've tried re-wording/working that a little.
A little elaboration on why the table is the way it is set up the way it is with the Prestige points - in the base campaign rules, you gain 2 prestige points on a win and lose 1 on a loss. Applying that to the roll (+2 or -1) expands the options a little and also serves to add a small touch of flavor.
The idea is that not just that some upgrades are cooler than others, and the really cool ones are very rare; but also that in a campaign setting, a ship's crew and captain react differently to victory than defeat. Crews that have just been shot up are more likely to concentrate on defensive gunnery, damage control, hardening their hulls, and uprating their shields; crews that have just participated in a proud victory are more likely be gaining leadership-related benefits, and in general more interested in upgrading their weapons.