An idea for higher difficulty of single player: Hardcore mode. Difference between normal and hardcore is that you cannot respawn on hardcore, so if you die in ffa, that's it. If you die in other modes, theoretically your team could still win, but it would rely on bots doing their job, and you'd have to wait it out, so practically it would be the same thing.
I'd see it as checkbox on singleplayer window, it would apply to campaign and instant action. Not much point in multiplayer, as it would effectively be LMS with 1 life. But it could provide some challenge otherwise.
I'd see it as checkbox on singleplayer window, it would apply to campaign and instant action. Not much point in multiplayer, as it would effectively be LMS with 1 life. But it could provide some challenge otherwise.