I only remember one part of it. I believe it’s either an apocalypse novel with different stages and this part is one of the stages or a video game novel and this event is a special one. I remember that the event takes place in a modern city and the players/people try to disguise themselves as NPCs. They then try to kill others. MC got a mission to assassinate a dude in a club and completed it. Also if people killed someone, the police chased after them and they were basically done for at the point. Also MC disguises in a fruit stand towards the end. This is only small part of the novel, please help.