Anyone here play tf2?

[TheGoldenGriffin]

I think i watched my friend play it. I don't remember what he was supposed to be doing but i think he was creating portals on the stair so no one could get up to him and he just to stood there refueling a gun so no one could get near him without dying. He said the spies were invisible so he put portals to let him know they were there i think. He was in this room with no roof i think and he was in a corner of a metal platform. I also remember the base had gray metal walls and the metal door slid open and there were theses sewer pipes that he went through. I remember he was small underground room that was part of the sewer pipe network and he said he was shooting any enemy who came through the pipe. There was also a place that let him go underwater and there was a small bridge over that area. I think pyros were the ones with the flamethrowers and i don't remember if they could shoot underwater.