Using the 3D models from MechCommander 2 and custom textures, I've created models scaled to match the horizontal scale (1:1000) of Battletech hex maps.

This is the Catapult. It stands about 16 mm tall when built.

Files included are in .pdo format. The Texture map is included for ease of switching. In addition the files can be easily rescaled to suit larger models, such as the standard Battletech miniature scale of 1:280.

3D Model © Microsoft, from MechCommander 2
Textures © 2012 Sean Kelly