Really nice! I like it alot, reminds me of new games like 'army of two' or 'mercenaries 2'. It might look better if you have a slightly more zoomed out camera when walking and zoom closer when aiming, like metal gear solid 4 or resident evil 5.
I know its still far from finished but it still rocks, I cant wait to see it all completed.

If you need any help in the future I may be able to help you out with models.

Cheers,
Ryan.