Joseph,
With the Aslans, I tried to think like a feline.
The felines come in two hunting varieties: chasers and stalker/ambushers.
Ambushers are the more successful; the leopard is the only feline that has increased its habitable range since the 19th century.
Much of the ground warfare is based around the chaser mindset': find the prey, chase the prey, kill the prey.
The ambusher mindset is simpler: wait until the prey is in very close proximity, then kill.
With anti-gravity vehicles, why would one want to employ chaser mindset?
Generally there are tactical targets, operational outcomes, strategic results and theatre aims.
A chaser commander may choose to progress through these, but an ambusher will simply drop the entire force in on the theatre objective, orbit-to-objective movement. [The USMC original 1990s forcible entry concept was called Ship-to-Objective Manouevre, STOM. It was a program, i.e. a STOMp]
No need to worry about taking intermediat objectives or maintaining phase lines.
Its the ultimate in the vertical envelopment, where there isn't even envelopment.
Then I looked at all the illustrations of anti-gravity vehicles, Traveller and other sci-fi games, films, figure makers.
They were all designed based roughly on the chassis/turret configuration of a classic 1930s 'tank'.
Why? Because none of the designers thought about what problem their design was solving for the military professional.
In all my conversations with military professionals, and those that got shot at anyway, there was common desire, which is that combat should not last any longer than absolutely necessary.
Einstein expresed a similar idea when he said "Make everything as simple as possible, but not simpler."
The tank was designed as a simple vehicle to deal with a specific combat problem. That problem changed in 1940.
Why would the TL-10 anti-gravity armoured vehicle designs continue to emulate the 1940 designs?!
So I designed my own anti-gravity assault vehicle for the Aslan mercenaries. It roughly resembles the ax-head in shape. Underneath and set in the 'blade' part is a circular weapon station that floats in a magnetic field.
The tactics are simple - the entire unit drops from orbit onto the most obvious location of the planetary seat of Government at about 50km/s.
Combat takes 1 minute, surrender negotiations 59 minutes.
An hour later the contracted mission is completed and the unit goes home.
Greg