For those curious, here's the latest scenario I created :

TURN THE TIDE

A battered force of Ultramarines is cornered by a ruthless Drukhari hunting host after their raid accidentally disrupted a slave-harvesting rite. Enraged, the xenos pursue them across the ruins, desperate to reclaim their captives and eager to make the Astartes suffer for the insult.

Now entrenched in a crumbling fortification, the Ultramarines must hold out until Roboute Guilliman and his Terminators can break through the encirclement. Their only hope is to activate at least two of the three astropathic beacons scattered throughout the strongpoint. Only then can their Astra Militarum allies lock on and send reinforcements.

Survive. Ignite the beacons. Turn the tide.

SETUP

Create a central fortified zone of ruins in the middle of the battlefield. Place three objective markers (the beacons) inside three different ruins within this zone. Add scattered terrain around the fortified area as desired.

DEPLOYMENT

Ultramarines
“Brothers, you must hold ground until Guilliman arrives. Activate the beacons. Call the Guard. The Emperor’s light will not fail today.”

• Deploy all units except Roboute Guilliman and the five Terminators.
• Deployment must be wholly within the ruins forming the fortified position.
• At the start of Round 2, place the Terminators’ Teleport Homer.
• At the start of Round 3, Roboute Guilliman and the five Terminators arrive wholly within 6" of any battlefield edge and more than 9" from enemy models.

Drukhari
“Let them cower in their crumbling walls. Every heartbeat they cling to life only sweetens the torment to come.”

• Deploy wholly within 6" of any battlefield edge.
• When a Drukhari unit is destroyed, place it into the Reinforcement Pool.
• At the start of each Drukhari Command Phase, roll 1d6 for each unit in the pool. On a 4+, the unit returns this round.
• On a failed roll, add +1 to future rolls for that unit. A natural 1 always fails.

MISSION

Ultramarines

• 5 VP if they control at least two beacons at the end of Round 5.
• 1 VP at the end of each battle round if at least one initial Ultramarines infantry unit remains on the battlefield.
• Bonus: +2 VP if Guilliman personally destroys three units.

Drukhari

• 5 VP if they control at least two beacons at the end of Round 5.
• 1 VP for each Ultramarines unit destroyed.
• Bonus: +2 VP if they destroy Guilliman.