It's pretty good looking, the models, but the scripting could use some work to make it more realistic.

-He has no strafing animations
-The climbing part where he pulls himself up on a ledge is buggy. You jump, and it looks good to start, but then his arms go down and then you continue pressing w until he 'slides' up.
-Falling looks a bit weird, his clothes completely dont react to the air resistance and the just kind of is in a straight line... make him lean forward and put his arms out more, maybe make them go in circles to give the 'desperate' effect.