Imported an Imperial Star Destroyer into UDK from 3dsMax 2010. I used various models I found off the internet an pieced it together using all the best looking pieces, Modifying it as I went along, Endlessly welding vertex's and deleting unnecessary polygons to help optimize the model. Also did some UVW mapping allot of the geometry to avoid texture stretching. (Which can still be seen on certain walls)
The entire Star Destroyer is scaled correctly to UDK's player height size..
The planet and Death Star are textured spheres, Skydome is just a star field..
I did this as a test to see how big would a space game be if it were to have life size models of battle ships in them.
I have been working on this for a long time before it got to this stage.
I am not selling this, nor am I making a Star Wars game for obvious copyright reasons.
Everything is custom content except for the Epics cicada flying vessel. =)