The NOVA Open Narrative event allows FW and Lords of War. Since I am playing in the Warlord track, it seemed reasonable for me to bring the one true Warmaster himself. Why dicker around with a titan when when I can bring 500 points of doom on a 50mm base. I know it will be trivially easy for opponents to avoid the uber death star that is Horus with terminators, but I think it will be really fun to give people the ability kill the man himself.
Horus fights for humanity.