A Question of Basics.

Are we talking a more 10-15mm affair here? I can see it in that scale - less bases than actual models kinda thing. I like the concept - "you have your orders soldier".

I like the "Intervention" by commanders. I'll have a wee go with the combat system I'm working on.

Yes.
I have been using this for 10mm and 15mm.(Firefly and FoW.)

However, a few games using individualy based '28mm' minatures grouped into units still gives good results.
(I simply used the unit leader as the focus ,similar to Warpath.)

The basic system can scale up and down quite well.
(I have tried it with 2mm to 54mm minatures.Squad skirmish ,(order for each model,) right up to corps level command, (order for each battalion-regiment.)

The resolution methods I am using are comparative values, and modified target score.

EG damage resolution.(Comparative values.)
Attackers weapon damage - targets AR value =save roll required.

EG (40k units.)
Ork shoota, Damage 7, SM AR value 4.
7-4=3+ save.

SM bolter Damage 7 ,Ork AR value = 2
7-2= 5+ save.
(Higher damage weapons reduce save , higer armour increases save.)

The other resolution is simply rolling over a target value.
(For aquisition and morale.)

EG Land raider has a stealth value of 3.
Enemies have to roll over 3 on a (D10) to aquire the land raider.(See identify and target .)

Stealth value is modified by ;-
In prepared position/hull down +2
Using cover /smoke +1(Infiltrate order.)
Over 36" away.+1
Using stealth equipment +1.

Dice roll is modified by;-
Under 12" away +1
Returning fire +1
Attacker stationary +1(Fire support order,)

(Add as many modifiers as you feel necisary.)

This covers disposition of target and attacker, and all the relevent factors.

Let me know how you get on with the game turn mechanic....