How could I have NOT commented here? (I thought I had...)
I... I'm an opinionated kind of cat...
PPCLI: https://en.wikipedia.org/wiki/Princess_Patricia%27s_Canadian_Light_InfantryThe Princess Patricia's Canadian Light Infantry:Infantry (duh!) 3-2-4 / 6-2-8 / 10-*-12
Legendary Ability: Reinforced
Second Ability: Repair OR Fast OR Easy Equip (or just Reinforced will do if it's not Legendary...)
They were highly trained, versatile in attack or defense, and participated in some of the biggest battles in history! Give them time to "dig in" and prepare? They were extremely dangerous.
Sergeant Tommy Prince: https://en.wikipedia.org/wiki/Tommy_PrinceA true (yet tragic) hero and member of the PPCLI at one time... he simply made any unit he was part of... better! Like, LOTS better!
How did this man not win a Victoria Cross? It's beyond my understanding...
Order -
Legendary1 AP = All infantry units heal health, and then add +2/+2 attack/defense
3 AP = All units (Air & Armour too) heal health, and then all infantry units add +4/+4
(Since the Medical tent also heals attack? This should be different enough to keep both in play! Not replace it.)
(2 AP for that second power would be OP, I think, eh? Perhaps not, since the Medical Tent heals all for 2 AP and restores all attack)
Fort Garry Horse https://en.wikipedia.org/wiki/The_Fort_Garry_HorseArmoured: 2-1-2 / 4-2-4 / 6-*-6
Epic (Or Legendary, to prevent Buster/Horsey Spam!!)
Ability: Scorched Earth
Optional Ability: Easy Equip OR Fast (If Legendary? Give it two abilities)
This versatile unit was in so many historical battles? It's not even funny. Tough, adaptable, highly trained, they could provide valuable information (thus Scorched Earth upon deployment) OR fight like rabid badgers! (thus strong upgrade numbers)

Say.. did you notice these three are
ALL Canadians, and also from Manitoba! Huzza!
Sheer coincidence, I'm sure...