Evening Gents,
As described previously I'm setting up this thread for people to post pictures of scratch built units they'll be using in the Storms and Shadows campaign. Now remember, Storms and Shadows allows for any 40k approved Forge World unit. Additionally, for those who have read the Rulebook already you'll know that the final scenario: The Hammer Blow is an apocalypse format game.
Therefore the rules of approval are same as that of the Megabattle. Any scratch built models are expected to be of reasonable quality, painted and clearly had effort and thought put into their structure. If you're building something specifically for the campaign I Recommend posting it early so the Battlegrounds staff has time to either approve it or let you know what needs to be done on it.