From forge world , after a little digging;
Entry on the site :-
[url]http://www.forgeworld.co.uk/New_Stuff/REALM-OF-BATTLE-ZONE-MORTALIS-SET.html[/url]
rule :-
[url]http://www.forgeworld.co.uk/Downloads/Product/PDF/Z/zonemortalis.pdf[/url]
Looks to be a expansion of the Imperial armoury books boarding action rules set.Dont think we are meant to see these yet , as zero images
enjoy