UI is great, sound settings, controls. The only thing is that font is low-readable in my opinion.
Visuals and Music are well fitting to the game and very polished IMHO. Cool!
I don't like that you only can shoot or move in the same time. For example If you kill enemy and enemy drops health then you need to hover mouse on health to move to it. You cannot chose another target to shoot when you are moving to health kit.