Can you help me with UV Mapping?

Hello, this is my first post. I’m having trouble UV Mapping a tank that I made (first relatively complex model :eyebrowlift:) I used Smart Project but I’m not sure how to put a texture on it (like a camouflage texture or something)
Anyway, here’s a link: Tank.blend
Blender version 2.56 beta

Here’s a quick unwrap. I’ve changed your model mesh a bit to make it cleaner.

Attachments

Tank.blend (583 KB)