"Inertia of the crowd" is a very good technique for this format of the game. The weapon was often lying next to another, so it was thrown out, and a pistol with single shots hinders more than helps, it might be worth it and it should have been made automatic or at least semi-automatic.
The background doesn't really interfere, but if you play for a long time, it's a little rippling in your eyes, perhaps it would be worth making it monotonous in this game.
Otherwise, a good example of a vampire-survival-like game,