Good, considering it is still in development
I liked it a lot. I don't bother listing the things I like, so anything I don't critisize you can assume I think is good. Anywway, here are some suggestions
Headshots should do more damage than body shots. Maybe reduce the head size and increase torso area.
Reloading took a bit long.
Burst are usually three shots, so you *could* support a thirty round clip.
With the helicopter fight I wasn't sure If I could hit it while under cover. I could shoot it, but I had no way of knowing whether it was taking damage. If you cannot hurt it while taking cover, you should give it longer breaks between bursts of fire so it is possible to get a shot in without taking damage.
Fire rate was a tad slow. Because it takes two shots to kill, you must either waste ammunition with the burst or allow the enemies to get a shot or two in before you can eliminate them.
Also, I noticed sometimes when I was reloading in the middle of a fight, some guys could shoot me around five times my health would remain constant. Is that a bug?