In some climbing maps you spawn in a place where you instantly die if you join the wrong team. When that happens it's impossible i think, to join the other team, because you press ESC and the menu shows, but you can't select any option while you are dying. The only solution is ctrl+alt+del, or waiting for an admin to change your team from console. What happens in the game shouldn't affect the functionality of the menu i think.
Another small bug i found, is in the start game tab. When you select 'Capture the flag' game mode, a box where you can choose the number of bots in each team appears, but if 'Capture the flag' is selected from the beggining, that box isn't shown until you click it again. I know, small bug
