[Makhil]

A very basic way to implement this idea would be to allocate a Battle Commander to each fleet slot. Remove the 'rename fleet' feature and use it to name the commanders.
Traits could be gained not from XP but from the behaviour of each slot:
- frequent def would gain in armour
- frequent attack would gain in damage
- massive roiding would gain in capping
- massive killing/suicide would gain in dread (population under attack lose efficiency)
- frequent recall would gain in cowardice (lowers any bonus gained previously)
...