Imagine a mod featuring massive Warhammer 40,000 battles where all 9 races in Soulstorm (and more!) have a chance at epic victory. A mod where there's no shortage of all new units, buildings, abilities, and even titans! A mod where there's nearly no limits holding you back. It's all about all out, massive war. Wanna nuke your enemies? You can. Gloriously epic titan duels are your thing? Ultimate Apocalypse has you covered.
Tyranids work perfectly! They can die, winconditions have been updated, and the Hive Fleet can actually die if under attack (even though it should be undetectable). So no problems with Tyranids, no problems with Necrons, or any other races, including Sisters of Battle, too!
It is functional, one last thing to do is to ship it off to public. :)