Yeah that sounds cool... i'm already lookin forward to the result

I like the "stealthy sneaking around" concept very much....
I think the enemy AI is crucial in this case, Enemy's need some kind of "field of view" so you can run to the next hideout when they are looking in an other direction.
Some kind of sniper weapon (or e.g a crossbow) would be very nice indeed.

Good luck with this project.. hope it will be a succes.