* Challenging level, but fair most of the time: Level design was solid.
* The settings was beliavable.
* The mission setup and progression was sensible.
* The second section was quite linear and heavily grafted experience (which isn't bad necessary) . It seems like the player can't afford to miss that many shots there. Having those couple of weapons hanging beyond your reach at the end felt a bit annoying. What was the point of "scout" at very end?
* Section three didn't seem to serve much of a purpose.
* I started the final section with sawed-off shotgun (I picked it up as my primary weapon in the last section) which sucked hard. I could see dropping some nice weapons at the third section that the player could choose from as making the experience better / more consistent.