Hmmmm....fun server lets see
Madelf and DIe Hard, Kougar and Corbo in a strictly regulated OOB environment where everyone else gets whatever ship they want but th9ose two have to stay in either freighters or frigates (but no X variants)
Kroma flies ISC and Butcher Gorn
Klingon mutiny enabled, and for the hell of it have Federation use non violent combat
762's fighters are all programed to attack the mothership 1 min after launch (giving them plenty of time to kill Hexx but noone else
)
Cloaking Starbases for any base assaulted by a live Romuln player (time to spead the love
)
I'm sure I'll come up with more but thats a good start for a fun server