Originally Posted by
kjolnir
Vector strike hits the side armor (12 on a Wave Serpent), and most of the flying stuff is S6 or below - meaning I'm not going to do much. The obvious except is Crones (and trust me, I vector strike the poop out of any offending Wave Serpent with crones). I also take the haywire template thorax weapon on the flyrants which helps, but that's still only one hit per vehicle. If I'm lucky enough to get behind it I can probably kill it, but that's not easy against a player that's good with their vehicles.
That works just fine against maybe 2-3 Wave Serpents. The problem comes when there are 4 or more. There are putting out enough twin-linked shots to reliably ground 50% my FMCs each turn by themselves, not to mention all the other Guided and/or Prescience'd stuff that's undoubtedly going to be on the table. FMCs can get killed pretty quickly by Eldar with the prevalence of S6+ shooting out there, not to mention distortion weapons.
An individual wave serpent isn't that bad, but that's not what people are really complaining about it. It's when you see 5 or more that it's just silly.