Both can be done with admin commands.
PTSR_aispeed will change how fast PF is, I don't remember what the default speed is, 20 maybe?
PTSR_SetNextGamemode will force the next map to be the gamemode of your choice. 1 is Endurance, 2 is Versus, 3 is Juggernaut, and 4 is Player PF.
As far as I'm...