Interesting FPS with ballistics, well done!
I love the story aspect and the cutscene, it greatly adds to the mood.
The decision-making loop is nice, you have to adapt to the bullets and to changing surroundings. However, bullet effects did not feel different enough to care with a few exceptions: I was always happy to get shielding and healing bullets (and sad not to get them for many reloads in a row), and blanks were also useful sometimes (I was hoping to get explosives after collecting six blanks, and it is amazingly effective when you get it). For all other types, I could hardly tell if they do anything apart from adding visual effects.
I would love to have a controllable FOV, as it was hard to plan the movement at later rounds without seeing more (where are these jumping cubes? oh, exactly where I decided to dash-jump :<)