Modelling landing the glider would be much like landing a drone (you can drop gear now and land drones with out ever touching down your self). Each town would have an ac "spawn point" that the glider would pick up on approach.............
It would have to ditch in the grassy areas off the centre of town IMO which is where each town would get this "spawn point". It would need 6-800 ft for a 3 point soft landing.
I think that if the troops numbers were limited to 10 (instead of 13 in the Hadrian) we loose a possible benefit. The other benefit being the ability to loose the glider remotely.
Typical towing altitudes was only 1000ft ( although some "special missions" went higher.)
Towed in at 100 the glider would nose up upon release to achieve its glide speed of 60 CAS
It dropped 400ft/min @ CAS of 60mph.
Releasing 3000 from a town the glide time is less than 2 mins so C47 would have to be at ~ 1000 above the town.
In RL many were relaesed at only 400 ft to shorten the run up to the landing point.
http://www.airspacemag.com/history-of-flight/waco.html?c=y&page=1For sure the handling would be problematical maybe limiting the C47 + Hadrian to longer runways like the B29. The towing speed could not exceed 125 mph! but then there has to be a down side IMO.