Created and animated in Maya. The Millennium Falcon is a Blender file from Blendswap by KuhnIndustries (http://www.blendswap.com/blends/view/48469); I export, and converted the mesh into Maya. The AT-ST Walker is an old file from http://www.theforce.net/scifi3d/.
A work in progress.
Scale test for the walker and the falcon for animation.