So I guess it's not clear to me where you want to go.Well had a quick look at this Frank Chadwick revision and it is basically Mega Traveller large scale combat in a new wrapper. Again not where I want to go.
You want a coarser scale?
Platoon/Company level infantry? Troop level armor?
Most mini systems are "vehicle" scale (they're mini's for crying out loud -- folks like the MINI and model aspect of the games), and so infantry comes second and is scaled to fit with the vehicles.
Otherwise it's at an individual scale.
Squad Leader is, well, "squad" level, with leader, crews, and single vehicles.
Panzer Leader is company platoon level, and troops of vehicles (I think).
I though maybe you'd like to look at Heavy Gear, it has 10 man units, but it tracks unit damage down to the individual. It also doesn't have the command system of something like Striker II.
Striker II is mostly a Sci Fi version of Chadwicks WWII Command Decision game.