[quote=@BCTheEntity]
The Tyranids probably will fuck up literally everything in the galaxy by the time they finish passing through... except maybe the Necrons, since they don't eat those guys.
[/quote]

Filthy lies, Orks forever stronk.

Seriously though, I always assumed that the orks and the tyranids would form a semi-symbiotic relationship. I mean, think about it; Tyranids need bio mass to porduce more Tyranids, Orks are essentially endless biomass producing spore bags that can thrive in even the most ridiculously hostile conditions. The more the Tyranids fight the orks, the more the orks will flock to that battle and the faster they'll produce more orks. Equally, the more orks die, the more bio mass the Tyranids have to make new nids with. It would be a beautiful cycle of eternal battle for the orks and an infinite biomass producing situation for the Nids.

But I will have to write up an Ork character sheet, it would be against my religion not to. I'll do a human one as well and present them both to [@Jbcool]