Fill empty slots (Bots/Open/Closed): I suggest adding a feature to change the state of all empty slots simultaneously. This would allow players to toggle all slots to "Bots" (filling the lobby with a selected difficulty), "Open," or "Closed" with a single click, instead of having to adjust each slot manually.

​Restart Button: Add a "Restart Match" option to the pause menu, but make it exclusive to offline/practice and map editor mode. This prevents hosts from abusing the feature in online matches while providing a much-needed quick reset for solo play.