Snipers, knifing only, RPGs only, C4 only, whatever you want. There'll be a chatroom that will be open for people to discuss what game mode they want next, such as a sabotage on rust with no respawning or whatever. At the moment, (I may find people to host lobbies if it becomes popular) I have the final say as I will be setting up the rules, so even if people don't want to try your idea it may be trialled in a game.