Quote from Vilhamyeah pretty cool. 1 minor crit is the lack of atmosphere because there's no music or obvious ambient noise in the outside areas. visually it feels busy but audio wise its sounds dead.
this. also: especially the travel to that bunker feels really corridory. Two things I would add: Revolver or Crossbpw with little ammunition (cause sometimes you have serious distances to the enemies, especially the first three combines). second: during the more "natural" part of the corridor, making the path a little wider and splitting it into two different height levels would add a lot of more open feeling and could add to allow different gameplay styles (as of right now it's still pretty much straight forward shooting).
the atmosphere in the camp is great!
the walking around to the bunker is great! (but make that entrence to the envy tunnel more readable)
the idea with the combine throwing the grenade back is cool!