One in the chamber is a pretty simple round, you have a pistol and 1 bullet. If you hit your shot you kill the player and gain 1 additional bullet. If you miss your shot you will have to resort to your stunstick.
> Round length is 5 minutes.
> Gameplay takes place on the surface, elevators down to the facility are locked.
> No items, just your gun and your stunstick.
> Players are split into 2 teams. One team is MTF and spawns at Gate A, other team is CI and spawns at Gate B.
> The 2 gates in-between Gate A and Gate B cannot be opened until the round has started.
> Each player has one life only, so make it count!
> The game ends when all of one team has been eliminated or the time runs out.
It's a pretty short round but i think it would be fun to play.
Since the gameplay takes place in an open space objects such as boxes or vehicle props should be added so players can hide behind them if needed.
Feel free to add other rules/ideas.