I have always thought something like this would be a cool idea. What I have thought as you upgrade these troops you get to use multiple of them at the same time instead of one. They would need to be reworked because so they were not too powerful.
For example
All Tank minion troops (Mob Enforcer, First Order Stormtrooper, Jedi Knight Guardian, and Stormtrooper) would have their unique ability give them at level 3 two troops going into battle, level 5 three troops going into battle, and level 7 four troops going into battle.
All Attacking minion troops (Hoth Scout, Tie Fighter Pilot, Clone Sergeant, Tusken Raider, Nightsister initiate, Ewok Scout, Snowtrooper, Magmatrooper, Resistance trooper, First order Tie Pilot, and Resistance Pilot). Would gain at level 5 two troops go into battle, and level 7 three troops go into battle.
All Support minion troops (Hoth Rebel Soldier) Would gain at level 7 two troops go into battle.
The speed, damage, and health of these troops would need to decrease and I would make the tank stats decrease the most but have their health pool stay in the average range. The attackers would have stats decrease to make them slow glass cannons. The support troops would decrease the less over all but keep speed up a little bit.
