I played this game on stream: https://www.twitch.tv/videos/2554754261?t=01h54m21s
Overall, the game seemed quite difficult to play, albeit this is not the usual genre of games I play. After the first boss, the next mission seemed next to impossible to win.
I didn't quite get the crouch mechanic. It seemed that it might be easier to keep moving around to avoid getting hit, over the maybe-crouching behind obstacles that kind of works, yet kind of doesn't. Perhaps having a clear area or indication to show that you have cover would help. I think another thing would be to be able to fire from a cover position, kind of like coming out of cover briefly, firing, then going back in cover. Right now it seems like to fire, I would have to step out, fire, step back, wait for the cooldown then auto-crouch again.