Pretty good actually. i like the whole idea and the vibe is spot on, ofc this is a beta or an alpha but it would be great if the bullet casing ejected out when firing. Everytime you relocate to avoid being spotted could be further improved by having multiple scenes for immersion as in actually moving spots. i will not judge the difficulty of the game because it's a beta or alpha (idk) But it felt a bit too easy, i only got hit once and that was because i didn't pay attention to the game while doing something else and got hit. after that i never once got shot. It would also be a nice touch if you could pull the fighting menu down so you could actually see the drawing and animation in the background. That's all about the game itself as it is. 

now as things it would be nice to include later on as suggestions, some form of  cover ground for the sniper or perhaps the enemy itself getting cover or getting into some (trenched) state. Maybe the  addition of new guns would be pretty cool with stats like (penetration for cover) or  more damage for less shots. An endless mode to the death could  also be pretty cool as it would make you start easy but slowly struggle since your health slowly lowers.
that's all i can think of! it was a nice expirience