Both sides would be using blip markers to represent their different units and squads (only themselves knowing what was under each one). Interspersed amongst the blips representing termagant broods were the 700 points worth of tyranid elite units which comprised of genestealers both ymgarl and standard, a brood of two lictors and a brood of venomthropes. We also decided that the lictors and the inquisitions eversor assassin could traverse the map via the airducts which we represented using the tops of the walls.
Finally, we agreed that the game would last the full seven turns and the unstable void ship damage table would be in effect. (My apologies for the use of the same blip markers to represent the tyranids and the inquisition. It might be confusing for readers but we knew what was going on).
The layout of the hulk - tyranid blips appear throughout the hulk with blips to represent the breaching ordo xenos troops in the foreground