This thing's adorable.
Weighing in at a tiny 2,900kg and capable of moving at 55km/h, the
XM108 was to have a crew of four gunners and was to be deployed with rapid reaction groups. It could cross mud, snow, swamps and water. It was unfortunately tested well before "Hello Kitty" stickers were available.
It also provided absolutely SFA protection to the tiny crew and carried no ammunition. The 105mm guns were "being phased out in favour of the heavier weight artillery" (didn't happen for another fifty years) and of course the Blue Sky School said they could do anything that was needed, no need for organic weapons.
Twilight 2000 Role:
Added to airborne formations later in the war, the tiny guns outperformed the standard M102 howitzers in the area of recoil trunnion loading meaning they could be deployed on softer ground, but otherwise maintaining the same standard of fire up to the small crew's endurance. Although nothing is said, the standard M102 had a crew of eight gunners so I'm assuming more gunners would turn up on an ammo/support vehicle.
GM Use: Have one of these stoically motor west with a few guys on it if you want artillery stragglers, just for the laughs.
Edit: These little things don't really offer anything the M102 doesn't except it can cross water or soft ground, I'm submitting it because it's cute.
