Yes, the main aim of this map was to inspire the use of teamwork to survive (or kill in the zombie's case). From the comments I am getting, I think I have succeeded.
I'm not telling anymore than I have. I'm not even sure it shows up when using the game type provided. I just found it in Forge. Though I'm certain you can't pick it up, otherwise you'd be able to get the ammo the other players drop when they die. Unless they died because they ran out of ammo and didn't beat down in time.