The Orks took the first turn and advanced quickly, swarming over the archeotech.
The Sisters of Battle advanced more cautiously, sending out a scout ahead while the rest followed on.
At the end of turn 1, the Dark Eldar and Blood Angels arrived, deploying on opposite sides on the far left and near right.
The Dark Eldar quickly found themselves under heavy fire from the Orks.
While the Sisters broke off part of their forces to pursue this new threat.
The Orks had seized much of the archeotech, but were now under heavy fire from all sides.
And at the end of the turn the Chaos Space Marines and Tau arrived.
The Sisters poured fire on to the Chaos Marines, doing no damage but keeping them pinned.
Meanwhile, the Seraphim seized their primary objective.
Despite being delayed by the Sisters and Orks, the Dark Eldar continued their advance.
While on the left, the firefight between the Orks and Tau was developing in the Tau's favour.
The Dark Eldar started to push through to the centre.
The Orks still had much of the Archeotech, but struggle to move it under fire from the Tau, Blood Angels and Dark Eldar.
Meanwhile, on the far side of the field, both the Chaos Marines and Sisters of Battle were pursuing the same objective. Most of the Sisters Kill-Team provided covering fire, while the Seraphim handed off the Data Bank to Sister's Ursula and Beatrice. The Sisters had little luck overcoming the Chaos Marines high toughness and armour, but while they were all pinned they couldn't advance.
Enough Orks had been taken down or out of action that the Dark Eldar were able to seize their primary objective, the weapons cache, and start to make progress towards their deployment zone.
The Tau were in difficulty. Their primary objective was the same as the Dark Eldar and they needed to move at top speed to get it, but they had to go through the remnants of the Orks to get it.
I hadn't considered, when planning this scenario, that the Shadow War rules require you to shoot at the nearest target unless a more distant target is easier to hit. This meant the Tau couldn't prioritise the Dark Eldar over the nearer Orks, even though killing Orks didn't help them achieve their primary goal.
But by the end of turn 5, enough Orks had recovered to make a decent go at recovering the Doomsday Device. They might not be able to take the bulk of the archeotech as they had hoped, but they could still achieve their primary objective. The Blood Angels and Dark Eldar had also secure their primary objectives, but were struggling to move them under heavy fire.
But it was the Sisters of Battle who would take the lead, carrying their primary objective off the battlefield first. Because they were second on the leader board, this meant that any Kill Team other than the Orks would need 4 Victory Points to beat them and win the campaign.
And that seems as good a place as any to take a break. We'll see how the other teams got on trying to catch the Sisters in part 3.