Love the quick and snappy gameplay, hit feels extremely satisfying. Really appreciate the "attackable" highlight since bullets are raycasts.
I actually really like how the turrets attack the player instantly within sight, it makes the gameplay feels frantic and instant in a good way. I think my problem with it is just that I wouldn't know that it is coming up since they are offscreen and I am already dead when I see it, so it kinda ends up as a memory game of sorts if I am not already under cover.
Maybe a suggestion would be a warning offscreen enemy indicator, or make a "fireable range" that doesn't fill the entire screen so you'd see them first before both parties can fire.
Great job overall, had fun with this. Thanks for making it!