With all of the Transports that are gonna be on the table (Dark Eldar, Razorspam, Chimera Walls, etc) I think I found a way for 'Nids to deal with them with assaulting. I am Sure many old school players remember the old "DakkaFexes" and "DakkaTyrants" here is what I came up with.
Hive Tyrant- Hive Commander, Wings, 2 Twin-Linked Devourers-285
2X 30 Hormaguants-Toxin Sacs, Adrenal Glands-600
11 Termaguants-55
2X 2 Zoanthropes-340
Mycetic Spore-Twin-Linked Deathspitter
3X Carnifex-2 Twin-Linked Devourers-720
Mycetic Spore-Twin-Linked DeathSpitter
(Other options include dropping a fex, pod and Termaguants, Buy another Tyrant so the Second group of Hormies can out flank{I know that the +1 bonus does not stack})[Or drop a unit of Hormies for 2 units of 10 Genestealers and 4 more Termaguants]
Main Thoughts are Deepstrike the Dakka (including the Tyrant) and outflank one unit of Hormaguants, use the Termaguants to Screen the other Hormaguant unit or to sit on the back field objective and deploy the Hormaguant unit off in a corner out of LOS
Pretty straight foward big beasties pop transports on deepstrike and then let the little gribblies eat the insides.
Worst case Scenario the big things have to assualt the vehicles the next turn.
Any Thoughts?