The rank of an individual matters! No more baseless exposition! What this means, is that say you have two heroes, a Captain, and a Grand Admiral. Both command and ISD-I. Given the fact the Grand Admiral is a higher rank than the captain, they will have more experience, and thus be given a stronger buff than the Captain unit. Same goes for Govenor, Moffs, and Grand Moffs, for example.
A planned feature is that units will be able to rank up via promotion. I am unsure if this will be manually (basically "building" an upgrade to the unit), or if it is possible via scripts, that after winning a certain amount of battles, a unit can be replaced by a promoted version of itself, equipped with the rank buff as stated above. Again, I honestly have no idea if this is possible, but I will look into it.
