... Unlimited experience levels for capital ships, but of diminishing returns, so that beyond the 10th level the only boost such a ship receives is a gradually diminishing modest hit point boost?
No additional abilities, no further statistic increase to weapons or batteries, etc. etc. - just hits.
A 50th (!) level ship might only have a total of maybe 200 hit points greater than that of a 10th level vessel of the same type.
Just a way to reward players over a very long haul contest, without being unfair/imbalancing.
