One of the newer displays at Warhammer World was this Horus Heresy battle, entitled, The Fall Of Outpost Sigma-12.
Traitor forces breach the Imperial Fist’s last defensive lines at Outpost Sigma-12 on Cthonia. Undermined by the Sons of Horus’ subterranean onslaught, the Loyalists are determined to fight to the last in the name of the Emperor.
They ultimately reap such a toll of Traitor lives that any victory won was a hollow one. This battle would be one of the last fought during the Horus Heresy, for shortly after its bloody conclusion Horus launched his assault on the Emperor’s Palace on distant Terra.