Great General is the great person that is generated when total combat experience form the war with another civilization (but not barbarians) reaches certain level i.e. 45 points. It can then build military academy (which can be replaced by command post in FfH), join a city as a military instructor (+2 exp to all units produced in the city) or be joined to a unit. When joined, he can not be removed but provides one time xp bonus to all units at the sime tile (20 points total) and allows access to some special promotions (morale: +1 movement, leadership: +100% exp from combat, combat VI: +25% strength, tactics: +30% withdrawal chance and medic III heals same tile and adjcent ones +15% per turn). It was first introduced in warlords expansion and works the same way in BtS.
Great Commander is a great person introduced to FfH when it required only Civ IV without any expansion and continues to work more or less the same way ever since. It is generated the same way all other great people are generated - from great people points in a city or by reasearching certain techs as a first civ. It can build command post, start golden age, can recruit and be joined to a unit. When joined he provides +1 strength to a unit and can be removed and used for something else any time.
The main problem is not the difference with the functions (it can be adjusted to FfH needs) but the way they are generated. I think that great generals generated in combat have much more flavour than great commanders that you can get without ever fighting a war. I got numerous ones this way playing Elohim - by researching military strategy as a first civ or simply by great people points from heroic/national epic. And then it could start a golden age

I think that even in so called reality all great generals were forged by war, not from long lessons in the academy... Of course, military academy training never hurts
On the other hand, the xp from wars with other civs is still calculated (you can check it at the military advisor), but no great general is generated when you accumulate enough xp. In fact, nothing is generated at all. It just goes to waste...
The lack of great generals is in my opinion the worst part of FfH. I love this mod and I think it would be even greater if this will get added. And that is why I started this poll - to check if there are others like me and if something can be done
