Need assistance with some Models Please

Hey Guys and Gals! I am currently working on some game models for my game and am having some trouble with UV unwrapping my models. The topology isn’t terrible but its not the best either and the poly county is around 10-23k. I made these models in blender but if you want I can export them as FBX or OBJ or something. I was just hoping maybe someone out there that had some talent in this field could give me and hand unwrap one of my models and maybe make a video tutorial on how you would go about doing it. (If you know blender and unwrap it in blender it would be more beneficial for me) Thanks folks!

This Blender Guru guy explains it quite clearly. Have a look at it.