Raglan from the Heresy30K forums posted these photos of his amazing Mastadon!
Description: the Mastodon was one of the heaviest assault transports in the arsenal of the Legiones Astartes during the Great Crusade, and is still found in the armouries of the Space Marine Chapters of the 41st Millenium. Its cavernous assault bay, capable of housing almost half a Company, is protected both by thick layers of ceramite armour as well as crackling void shields. It also mounts a fearsome siege melta array, allowing it to breach even the most formidable defences with ease, as well as an array of secondary weaponry intended to defend the vehicle as it approaches its target. Unleashed only against the most fearsome of enemy redoubts, there are few obstacles that can stay the wrath of this relic of the Imperium’s bloody birth.