Stage 4's Council thing would actually be really easy. 1 character in Terminator armour and watch them bounce off live severed heads hitting a wall. Hardest part would be dealing with the Ravager *cough*
rifledread *cough*
Oh, and more!
Stage Five
Battered but still fighting, your army continues its push into Commorragh. Hey, we're here already, why not go on a killing rampage?
You come in direct contact with the Haemonculus Covens, and a bunch of them decide to work together to deal with a bigger threat. In this instance, you. Enjoy.
HQ
Urien Rakarth (190)
Haemonculus with venom blade (55)
Haemonculus with venom blade (55)
Elites
4x Grotesques (140) in a Raider (60)
4x Grotesques (140), in a Raider (60)
Troops
5x Wracks with a Liquifier (60), in a Venom (65)
5x Wracks with a Liquifier (60), in a Venom (65)
10x Wracks with 2 Liquifiers (120), in a Raider (60)
3x Wracks (30), in a Venom (65)
Fast Attack
5x Scourges with Haywire Blasters (130)
5x Scourges with Haywire Blasters (130)
Heavy Support
Talos Pain Engine with chain-flails (115)
Hyperios Death Engine (105) - Counts-as Ravager
Hyperios Death Engine (105) - counts-as Ravager
Atlas Sky Engine (155) - counts-as Voidraven
Fortifications
Gnarlskin Barrier with Quad Gun (100) - counts-as Aegis Defence Line
Total..............2000 points
This mission is just a normal battle. This time, however, you'll certainly be outnumbered unless you somehow took no casualties at all the past four stages.
Still, it is a Coven list.
Stage Six
The Coven has been defeated and your path is now clear to assault High Commorragh. This won't be an easy task - luckily, 500 points of reinforcements have come in, but you'll be facing the pinnacle of the Dark Eldar force... Asdrubael Vect's Kabal of the Black Heart.
Dun-dun-duuuuuuuuuuuuuuuuuuun.
HQ
Asdrubael Vect (240), in the Dais of Destruction (200) with 9 Incubi (198 points)
Archon with a Blaster (75)
Elites
The above-mentioned 9 Incubi
4 Kabalite Trueborn with Blasters (108), in a Venom (65)
Troops
5x Kabalite Warriors with a Blaster in a Venom (125)
5x Kabalite Warriors with a Blaster in a Venom (125)
10x Kabalite Warriors with a Blaster and Splinter Cannon in a Raider (175)
10x Kabalite Warriors with a Blaster and Splinter Cannon in a Raider (175)
Heavy Support
Ravager (105)
Ravager (105)
Voidraven Bomber with Flickerfields (155)
Razorwing Jetfighter with Flickerfields (155)
Total......2006 points
Hint: Watch out for Vect's Dais and the unit in it, because that will cut through everything, up to and including Terminators.
Assuming you win that rather brutal battle (seriously, venomspam with fliers and a lethal assault unit. Ugh), there's one last end to tie up...
Stage Seven
With the destruction of Vect's Dais and a good portion of his force, it's time to take on the Supreme Overlord himself. So after sending your Strike Team into the palace and shooting your way through guards, assassins, traps and concubines, you finally confront him.
For this mission, Vect's sceptre becomes AP2 and he gains Eternal Warrior (seriously, why doesn't he have it anyway?). All other enemy Dark Eldar gain the Bloodborn special rule, which gives them Fearless, Hatred and Counterattack.
So, Vect is ready for you and he's brought company. Namely:
-10x Kabalite Trueborn with Splinter Rifles
-4x Kabalite Trueborn with Blasters
-3x Incubi plus a Klaivex with Demiklaives
-1x Ravager with 1 Disintegrator Cannon and 2 Dark Lances
Fortunately, you don't have to kill all of these people or even kill any of them for that matter. The aim for this is to get Vect down to 1 Wound, when he'll run away... I mean, make a strategic retreat...
Of course, that's easier said than done. Fortunately, you've got your full Strike Team for this. Good luck!
***
Assuming you manage this, you've completed the Dark Eldar Gauntlet. Quickly, you extricate the remnants of your army and Strike Team, leaving Commorraghian politics to kill everyone you didn't.
So there ya go. The first Gauntlet, ready for playtesting. I think I'll do Chaos next, because I have quite a few ideas for that...