the problem here is that the game has no justification to exist, the only objective is to kill people, and this is the objective because you're playing as the edgelord who hates everyone. there's no well thought out story and no features or anything to make this game look unique. would you play this? would you feel good about playing this? would you be inclined to complete this game to the end?
surely with some changes to the story, objective, and other things this could be made into a great game. what if instead of playing some character that makes you hate yourself, how about you play as a guy who is being blackmailed by some police official? surely this character would feel actual hatred towards this man, and this character wants to have his revenge because this blackmailer ruined his life, perhaps had his family killed or made his wife and children leave him in some way and is stalking him. this would give this game a goal, to kill this blackmailer. on the way to getting to him, you could get weapon upgrades or different weapons, helping you to blast away anyone who tries to stop you. if you kill civilians, nothing happens. however if you kill people who are trying to stop you, you get points etc and the ability to live to the end of the level of course. before the final boss there could be a level that is fully interiors - this man's headquarters or whatever. then once you get to him, you could have a choice to finally kill him or leave him be, this could lead to different endings. maybe once you deal with him there could be a plot twist that reveals that this guy had a boss who told him to do this and you have to get to that guy too or whatever.
what i'm saying is that they could have done better.
all the story is:
"im the edge lord and i hate everyone time to kill them all for no reason"
the developers have no imagination and are terrible people in general. do not support this game.