I don't remember exactly what the list was, but this is what it would be if I ran it again. The basic idea is that I have a list that doesn't give away kill points easly, it also has a dangerous high armour target plus a horde. So any army skewed toward anti infantry or anti tank ends up getting screwed.
Most of the missions had kill points as either the primary or the secondary. To beat this list in kill points you almost have to kill the tide. I won two games, lost one I ended up winning the tournament.
In order to protect the Stompa I was deploying it behind the Tide; looking back on it I think it would have been better to deploy it on a flank so that it would be able to move more freely. I used the gretchin to screen the tide.
The first game my opponent was running a guard/chaos list, with allot of summoning. My opponent kept summoning daemons and assaulting the Tide. The tide in turn kept killing the daemons, so he basically fed me kill points for two or three turns. Meanwhile he focused allot of fire on the Stompa, and eventually killed it. By then the tide had been freed up and was able to rampage through his army.
The second game I played against a guy who runs a scout army with the Iron Hand Chapter Master on a bike, plus an Imperial Knight, plus a Storm Raven, and Vindicators. He is a good player and it is a tough list for me to fight in the best of circumstances. It was an attack defend mission, I was the attacker. Which meant he got a building with a
str 9 (I believe) barrage weapon for free. He focused fired the Tide and was able snipe out my characters with the barrage weapon. He was then able to grind down the Tide with his bikers. I lost that game.
The third game I played an Imperial Guard player. He 50 guards men and some tanks and stuff. He deployed too close, I got a turn 2 charge on his blobs, rolled 120 dice, he then conceded.
I will admit this wasn't the best test for this list; even so in my opinion this is one of the best ways to run a Stompa at the 2000 point level.