Forum adverts like this one are shown to any user who is not logged in. Join us by filling out a tiny 3 field form and you will get your own, free, dakka user account which gives a good range of benefits to you: No adverts like this in the forums anymore. Times and dates in your local timezone. Full tracking of what you have read so you can skip to your first unread post, easily see what has changed since you last logged in, and easily see what is new at a glance. Email notifications for threads you want to watch closely. Being a part of the oldest wargaming community on the net. If you are already a member then feel free to login now.

This is a really interesting idea, i can see merits for both.
For the CE they have farseers which can fore see a large amount of usfull things, super heavy tanks and titans aspects and every single eldar is a soldier and almost every dead eldar can be too so thats not looking too bad.

And for the DE they have far greater number and every single Dark eldar is a murderer, Archons are incredibly devious to a point where out witting their CE brothers is rather simple, they also do have the tech specifically designed to kill psykers.

As for the other facts the Commorragh is unbelievably huge, unfathomably huge, and the webway itself is even bigger, do not ever underestimate how large the webway actually is. That being said the eldar wouldn't want to invade it due to the dark city being well dark and all dark eldar would have a huge edge over their kin due to this fact alone. So it would have to be won by the CE by some how (and i don't say this lightly) locking them in their city and away from real space. This way they could remain unharmed and avoid the fight (must to the eldar tact) and not have slannesh feed off souls of their dark kin.
For the DE to win really they just need to over whelm each craftworld one at a time and I'm sure that masters of the webway could easily seal shut a craftworlds webwy after their attack begins to cut of reinforcements. I know the farseers would see it but if they were at war they'll need very specific details that i'm not sure they could see.

It's a tough one really. But i'm sure Vect has already got a plan for it just in case...