While we've been busy developing Demon Core, we thought about putting something together for the developing community! We've made some UDK ready 3D models available for other developers via FallingPixel.com! You can check the models out here. There's a nice selection of ready-to-use models with various camoflauges, so check em out! :) The models are based on the same ones used in Demon Core, even though the camoflauges aren't in the game.
If you any questions about the models, fire your comments away!