and what about a pirate's nation?
good light infatry and no heavy one;good pillager and create unrest in enemy dominions.
as hero

ndokan,long john silver,cpt sparrow and cpt hook(only 1 hand slot,use his hook).
a national spell "yarr" that made you commander spawn pirate based on their xp,with a bonus if hof.
maybe a better version of ghost armada