Battletech: Overlord C-class Map Scale Dropship

The largest dedicated 'Mech carrier in service in the inner sphere, the Overlord C-class is a massive Dropship—weighing 9,700 tons and measuring nearly a hundred meters across and over one hundred and thirty meters tall. The scale of the vessel enables it to carry an entire battalion of thirty-six 'Mechs, along with all the requisite support personnel, including a flight of aerospace fighters and nearly a hundred tons of cargo. But it is still well-armored and bristled with weaponry, making it a deadly weapons platform.
Bridge the gulf of stars with the Overlord C-class Map Scale Dropship!

—blurb from back of the box

The publisher did produce a flat cardboard dropship and these could be considered upgrades of that.