From a gameplay sense, what does veterancy add? This is not something I have ever been clear on with RTS games that have it. Sure, it creates an incentive to not let your veteran units die, but it's already more effective to retreat starships rather than letting them get killed (as is the case in most RTS games with centerpiece units). So, what new interesting decisions really get added? It seems like just another internal subsystem that adds complexity without function to me, for Starships or in general. Having ships track their number of kills is something that I agree sounds interesting, though, especially for when it comes to measuring the effectiveness of turrets and so forth.