Mech Fuzzwing

Hey ho, here we go!

HQ
Logan Grimnar

Rune Priest-Living Lightning, Chooser of the Slain
Troops
Wolf Guard-6 terminators, heavy flamer + chainfist, chainfist + storm shield, 2x wolf claws, Land Raider Crusader w/ multi-melta, extra armor

Wolf Guard-6 terminators, heavy flamer + chainfist, chainfist + storm shield, 2x wolf claws

Grey Hunters-5, meltagun, Rhino

Grey Hunters-5, meltagun, Rhino
Fast Attack
Land Speeder-multi-melta, heavy flamer
Land Speeder-multi-melta, heavy flamer
Heavy Support
Land Raider Crusader-extra armor, multi-melta
Predator-autocannon, heavy bolters
Predator-autocannon, heavy bolters

Total-1991

This is your mech Fuzzwing, hardly definitive, but a good idea of where it is headed. 2 LRCs full of angry Termies ram down your throat while Preds and Speeders give supporting fire and Grey Hunters capture objectives. If you want to go for a more traditional or "pure" Deathwing feel, swap the Preds for Dreadnoughts with dual autocannons. Speeders and Grey Hunters can be dropped for another unit of Terminators.

This is very much a hammer build and sacrifices flexibility and redundancy for 2 pretty nasty assault units.