I don't really care what the TF2 community thinks. SPUF is a cesspool.
Regardless, I played the mode with my highlander team, who are very good at TF2 and the classes they play. We were doing fine until you get to the part where there are about twelve uber medics, two tanks, nine giant heavies, and six giant crit rocket soldiers. Who were all constantly charged. Not to mention the swarms of support snipers, demomen, soldiers, and heavies.