A rough attempt at such a ship: Reasonable performance but disappointing payload.
TL-16, 2500 Dt, J-4, M-6, Armour 20, Hull 1100, MCr 6000.
Superior Stealth, Emission Grid, Stealth jump drive.
Rad Shielding, Psi Shielding, EMP Hardening.
Good sensors, good countermeasures, 25 fixed mounts with 73 missile racks and 2 sandcasters (chaff).
Payload: 100 Marines + 10 officers + 2 small Deployment/Utility craft.
50 Dt cargo + 475 Dt in fuel/cargo containers normally containing J-2 fuel.
One 35 Dt module for defences, e.g. 5 Nuc Dampers, 2 Point Defence Batteries, better sensors, or a small bay for ground support.
Two 237.5 Dt modules for jump fuel or extra payload, e.g. another 100 marines or a boat bay for extra small craft or vehicles. Each module not containing jump fuel reduces jump range by 1 Pc.