My idea is to have a pseudo campaign that is based off of the Fast Paced Singleplayer maps of Quake, Doom, and ROTT. You can play as the Scout, Soldier, or Pyro, and you have to fight your way through multiple levels consisting of open, large rooms that have "keys", powerups, and weapons that you can use. The Gameplay / Design consists of: -Large maps compared to the likeness of older FPS games. With this in mind, they play exactly like this in mind (They will have the exact same art style the multiplayer maps have). -Enemies consisting of the 9 major classes (Heavy, Soldier, Demo, Engineer, Scout, Medic). Only 6 classes are used because others wouldn't make useful defense. -Same assets from the multiplayer maps are used. You will find things like Trains, Benches, Railings, etc. -Powerups (Like the pills from tf2c) are used, things like Armor, weapons, and Quad-Damage. Keycards and Intelligence briefcases are also used. -There isn't much about a story mode. The reason why is because a Story Mode isn't really needed. They're just levels for mindless fun besides the multiplayer. I guess you can be BLU vs RED. -Enemy AI is different from the bots, I don't know if you can program bot AI to do things that Enemy's from Singleplayer campaigns can do, but If you can then they would be able to open doors, Deploy sentry's, call for help, Heal teammates, and do partner taunts when no PC's are around. -Co-op, because why not? -Help me add more stuff.