I decided at the last minute to use one of my 'man-made hills' - the Mercury Plateau as something for the Deathwatch to stand on and defend.
I also plugged in the 40k Dawn of War Plasma Generator as well.
I'm really pleased with the final result I think I could have thrown more Stealers at it but it might have been too much.
The guys at the store didn't hold out much hope for Kill Team Cassius but who knows.
I'll post up some pics of the other entries when I'm there later on.