I like the model but the normals are weird as others have tried helping you with, but for me the weapon is just the ugliest thing I've ever seen really.
it should be possible to add the flash light to a weapon but it will have to be scripted and I don't know how to go about this, maybe ask over at the UDK forums
The pieces finally fell together and I got the weapon imported. Here's the sculpt... and here it is in-game. I tweaked the masks and colors a bit more after this.
I like the environments. The foliage is really great. Not a big fan of the mechs though. They look clunky. Especially the mech weapons could be much more delicate.