Oh man; played a game a bit back where it was a 3v3, the rook and Thorns lady were never seperated. Cateract was the map name (I"m SURE I misspelled that). You just can't get by Rook, his towers, and the healing/ranged/minions of the Thorn lady. We sure as heck tried. They just slooowly crept towards our citidel; Rook eating our towers as he went.
Here is what "I" did to slow them down; I'm sure if I had a team full of friends that I could have communicated with, we would have beat them. First, I was trying to capture all the flags. I figured, if they want to clump up 2 or 3 DGs, go ahead, we'll just get all the flags. But my two teammates kept trying to fight the unstoppable Rook wall. I was trying to use all the extra gold from flags/mobs to upgrade the citidel to Catapults. I figured they could not slooowly work their way to our Cit if I had cleared a path for minions that included Cats.
But I just could not do it alone. My allies did their best to stop the Rook "mudslide", but could not. I just think that if you can't beat'em, out flag/gold'em. I just need to get a group of known players, friends, to join with me in the future. Is there a "friends" list in MP?