This is a 3 player scenario by Munsey. We used Dark Eldar and Chaos marines as the attackers with orks as defenders, but you can alter it to suit fairly easily (just make sure to have reasons for the 2 attackers to be capturing people). It originally started out as a kinda 2-way slave raid between the Night Lords (Munsey) and Dark Eldar (my Black Soul Kabal) on an imperial outpost, but then Mev wanted to join in with his Orks, so we altered it to suit. Anyhoo, its a cool mission and the first in our campaign (more on that later).
The Dark Eldar and Chaos Marine vanguard are both planning on raiding a small imperial colony. As they approach they sight each other, but also notice something else equally startling- the imperial base hase been overrun already by a large mob of greenskins. The orks have not sighted the two comverging armies, who now must fight each other as well as the orks for slaves...
Your mob is lazing around, resting after yesterdays slaughter of the pathetic human colony. Many of the boyz are getting restless, and you know that you should be moving soon- and thats when the alarm is raised...
Compulsory
1 Fast Attack
1 Troops
Optional
2 HQ
3 Elites
3 more Troops
2 more Fast Attack
1 Heavy Support
The defender uses the standard mission organisation, only they should probably take an imperial looted vehicle (from the imperial guard army list) since they did just overrun their settlement...
This scenario uses the reserves, victory points, and sentries special rules.
The defenders set up first and use the sentries rule. The attackers know about each other and role to see who sets up first. The players may choose to hold any units reserve.
Use the rules for taking prisoners in the front of the dark eldar codex for the attackers. The attackers get 50 victory points (this is what we used, it may be too high though) per prisoner taken. The defender scores 50 vp's per attacking uint still on the table at the end of the battle apart from mandrakes/infiltrators.
The attackers may leave the table at any edge within their deployment zone.
The defender falls back to his/her table edge. The attackers fall back to the opposite edge.