Love the graphics! The gun animations and movement feel smooth and polished. The combat feels a bit clunky, as enemies will snap to you and instantly start shooting the moment you alert them. Even if you hit them from behind, they are still able to shoot a volley of bullets at you before you bring them down.
It would be nice if headshots dealt extra damage. That would encourage players to use the Golden Eye 64 style aiming system more, and reward them for being more precise with their aiming. Another way to make the combat more satisfying would be to add in sound effects for when enemies take damage and/or die.
Nice work!