Based on the game Space Hulk, it allows you to play as alien assault team taking on a derelict space ship.
The Sin of Damnation is back from the warpspace, this time in 3rd edition flavor. This campaign uses 3rd edition tiles and mission briefings. The missions however play a little differently since I've used slightly modified maps and underground tunnels which is not available in the original setup. hopefully you find it challenging. 12 missions in total