Very nice technical work!
Build size awesome!
UX controlls from my point of view need improvements.
ASDW + Space + Mouse seems a bit hard combination. Usually character automatically alligned with movement direction. In general you will have couple minutes of player to attract him to continue deep into gameplay. So we have to remove obstacles on his way.
It will be nice to highlite charged weapon. Gamescene is very dynamic and on a big monitor controls are in the non-visible zone. You can think over for the right place of weapon indicators.