Sigma Prime saw the Thousand Sons, Night Lords and Raven Guard face off against the Sundered Mechanicum, Salamanders, Imperial Army and elements of the Alpha Legion.
On the left flank the Night Lords and Raven Guard Contemptors advance against the Dragon Revenant Cassian Dracos, in the hope that their combined might would bring him down.
The Salamanders, under the stern gaze of Imperial statuary, rain death on the Night Lords as they advance on the far left.
Victory to the combined force of Salamanders, Mechanicum, Imperial Army/Alpha Legion!
please note some stuff isn't really covered as these are all the photos that turned out any good.