This is a map with 3 arenas.
You start in a lobby with only the physgun.
Now you can choose between the 3 arenas or just watch the
fights

The arenas:

Yellow Arena:
starting weapons: Physgun, Pistol, Machinegun
a fast and high arena with jump pads and a combine ball
spawner in the middle
no physobjects.

Red Arena:
starting weapons: Pistol
A little part of a city with weapons.
no health or armor pickups just fighting to the death.

Blue Arena:
starting weapons: Physgun
This is a Physgun only arena with a deadly big rotating
blade and objects to throw.