This was made using an old Lucius Pattern Warhound Titan Vulcan MegaBolter, I liked the simplicity as the armour shielding is symmetrical whereas the Mars version is asymmetric and would need the modelling skills of my Titan buddy Rob Wolters to look decent.
I added various gubbins on the rear and a set of inner Land Raider doors to hide the shaved off arm socket.
Dakka Dakka
What I found the most useful is a stack of 5mm magnets in the centreline strut was strong enough to affix to my magnetised Apocalypse Missile Launcher mount (the reason I chose to magnetise that bit).Here it is on Reaver Aquila Occulus, ready to strip the voids on the Traitor Titans
I quite love the low profile and stubby barrels, looks brutal.
Here was the converted stage, I used a landing gear strut and cog mechanicum piece from the StormTalon Gunship, a sponson side from the same, a couple of doors from the internal Landraider doors and the landing struts made the hingles, gap filled and finished off with a couple of eyebolts from a Leman Russ (I think).Hope this inspires some of you Titanseers to re-arm your Engines!