Beastmasters are an exceptional unit for
WWp as well.
When thinking about the webway, you've got to think about both army composition and the potential deployments. Lets just look at standard missions. If you play in a tourney with custom missions, pray htat they release them before-hand (most of them do)
There are 3 possible deployments for standard missions, but you also have to consider whether or not you have first turn. In all cases, your aim is to get the
WWP(s) as close to table center as possible.
Pitched Battle with first turn. This is an easy one. Just about any unit can house your
WWP holder. Deploy at the furthest edge of your deployment, in the center, and move forward 6" and drop it.
Pitched Battle with second turn. Almost all dark eldar armies I have seen have been designed to play from reserve without first turn. You'll need a robust unit to house the
WWP, and it might end up being a sacrificial unit. Harlequins can be a good option here if you refuse to sacrifice any units, and depending on terrain sometimes you can just deploy the lone hameonculus as long as he is completely out of
LOS. Otherwise I would advocate using a 10 strong wrack unit. Even my heavy weapon spamming long fang-hating
IG army can only reliably kill 7-8
FNP, in-cover T4 models.
Spearhead first turn. See pitched battle first turn. Virtually any unit can be deployed to house the
WWP haemonculus
Spearhead second turn. Pretty much the same as pitched battle. If you've got foot units in your list that you don't want to have to walk from the table edge, then you'll need to get that
WWP out there.
Dawn of War first turn. This is the mission that kind of ruins it for harelquins, as they can't be your "
WWP house". You can deploy the haemonculus solo on this one if you want, he'll be able to drop the portal right away, and even if they seize the initiative you'll have nightfight and hopefully some
LOS blocking terrain to save him. Alternately, you can just deploy him with a 10x wrack unit.
Dawn of war second turn. Again we can't use the harlequins for it, but the 10x strong wrack unit is MUCH more survivable here as many of your opponents heavy weapons will be rolling on to the table and unable to fire to full effect, and also night fight will protect you quite a bit.
So for the unit to hold the haemonculus, I would advise that your list definitely include a 10x strong wrack unit. Additionally, you can include a harlequin unit for 67% of the missions, its a much better unit for not taking casualties in those missions. But you pay for that luxury.
As I mentioned earlier, the best thing I've seen step out of a webway portal so far is beastmasters. Also, I mentioned that the fragile dark eldar always have a reserve plan for when they don't get first turn. The trick is, with most units, the points economical and dark lance-having raider does just fine when coming from reserve. Things like wyches and incubi will clear up to the 24" line for a table edge on their arrival. Granted they won't be allowed to charge when they arrive, but it saves you from having to make a
WWP plan.
Another unit I see often in
WWP lists are trueborn and scourges stepping backwards out of
WWPs. They are closer to the action when they arrive, and so can use blasters/splinter pods. But they don't necessarily have to come out of the aggressive side of the
WWP marker. In the case of scourges, they don't "need" to do this, as they can have plenty of 36" cannons, and in the case of the trueborn they don't need to do it either as they can have the great venom.
But beastmasters would absolutely love the opportunity to charge something without being shot at, and don't have a transport to start in the middle of the table. In games where you have first turn, they function quite well, stepping almost to midfield and then threatening a turn 2 charge on almost everything your opponent has. But they suffere a lot when you don't have first turn, and are facing a shooting army or a hybrid shooting army. Your overall fragility forces you to full-reserve and then your expensive and moderately slow beastmasters are forced to walk on from a table edge. That is why they love the
WWP so much.
A few more tips...
If you go for the
WWP, use this opportunity to save points on raiders and venoms by not taking them. This nets you a loss in firepower, so be sure you include trueborn and/or scourges for mass splinter cannon fire, and trueborn/harlequins for anti-armor shooting.
Liquifiers are VERY good. This is more of general tip. In a
WWP list, I'd like to see at least one 10x wrack unit with 2x liquifiers and 3x haemunculii with liquefiers.
Don't skip ravagers just because you are a
WWP list. Their front-loaded output is too good and can't really be replicated on foot, and they operate perfectly from reserve.
For troops, foot wyches are more survivable in assault, and foot wracks are more survivable in shooting, since the wyches are walking, this is an opportunity to buy that second shardnet, making them a really frustrating unit to finish off in
CC. I like a mix of both types of unit, so that you aren't hyper vulnerable to a focussed army.
I don't have a book handy, so I have no real idea of what this points out to, but here is what I think would be a great starting point for a
WWP army...
3x haemonculus 3x liquifiers, 2x
WWP
5x trueborn 2x splinter cannons 3x blasters
5x trueborn 2x splinter cannons 3x blasters
5x trueborn 2x splinter cannons 3x blasters
10x wyches, hekatrix, agonizer, phantasm grenade launcher, haywire grenades 2x shardnets
10x wyches, hekatrix, agonizer, phantasm grenade launcher, haywire grenades 2x shardnets
10x wracks 2x liquifiers
10x wracks 2x liquifiers
5x beastmasters 5x khymera, 8x razorwing flocks
5x beastmasters 5x khymera, 8x razorwing flocks
ravager
ravager
ravager
From there its up to you where you'd go. i think its probably fine on anti-transport shooting, I would prefer more splinter cannons and so I might add a scourge unit. Or you could hybridize and break up the second big wrack unit into two 5x units riding in venoms and maybe buy venoms for the trueborn, that they will or will not use based on the mission.
Hope this was all helpful