I think a lot about leader system and ive got one idea. Its about to give HQ unit a special ability, that player will choose for a whole campaign(only one). Like one more LP, or more firepower for units in HQ range, or a special reconnaissance balloon that could mark enemy units for artillery and that artillery will inflict more damage to marked unit. And others abilities, like:
– HQ unit will be replaced by HQ armored car.
– leader of some unit type(tanks, infantry, cavalry, etc) and this units type will gain +1 for all stats, but anoter unit will have – 0,5 for all stats.
– Art of defense – trenches more effective and for 1 LP HQ unit can order another unit create/upgrade trenche on 2 levels (was nothing now trenches of second level or was 3rd, now 5th level)
And ssomething like that.
Sorry for not good English, wasn’t practic so many time. Well, good luck, Kris. Hope, this will help you.