mordoten wrote:
Isn't the Zoanthrope missing its AA attack?
Nope, the Zoanthrope has a very different role in this list. They're slightly more durable than the Tyranid Warriors, slightly slower, and a lot shootier. In fact, it's quite possible to play the list with no Tyranid Warriors at all!
Have a plan to field a ton of Carnifex combined with Zoanthropes and a Hive Tyrant, put the lot in a Mycetic Spore and drop them.
The AA units in the list are the Dominatrix, Gargoyles, Biovores (and potentially the Harpies if positioned some clever way).
Since Biovores only has a 30cm range (60 w indirect fire), they're as much an AA unit as a light artillery unit.
Also, since Tyranid Warriors and Hive Tyrants can have Wings, Gargoyles is a much more interesting unit than in the other lists. So it's completely viable to show up with 8, 12 or even 16 Gargoyles in a single formation.
That being said, balanced formations (with both Inf and Vehicles) will be better at protecting the Synapse creatures from being singled out by AT fire. So in practice such a formation may be too brittle.