Making an AoE 3 Moba

Someone challenged me to "Make LoL in AoE 3" and I decided I would develop a one-lane (technically 3 lane) scenario. After working on it for 3 hours with almost no experience in AoE's scenario editors, I have:

• Successfully made Loss states for both teams.

• Successfully made automatically spawning minions (musketeers).

• Successfully made automatic attack-move order for the minions.

What I have planned is:

• Destroying a tower (outpost) grants access to stronger units. (Three towers and the two inhibitors (aoe 3 tower) at enemy base)

• Gathering treasures grants one-time-use bonus units.

• Defining victory states for both teams (duh).

What I'm having difficulty with:

• Disabling player controls on the minions*

• Disabling auto formations without breaking my triggers.**

*I have tried adding a "when a [musketeer] is selected > disable player controls" trigger, but when I do that it permanently disables the player's controls, even after the unit dies. I could have another script which enables player controls, but I'm not sure what condition I'd set for that since you can't deselect a unit with your controls disabled.

**The reason for this is because when the minions spawn in, they are prone to slow down to try and automatically form formations. Because of this, one side or the other has minions that are slowed down which grants the opposing side a distinct advantage.