User blog comment:Sindri Myr/It is the fifty-first millennium.../@comment-1657156-20130417163809/@comment-7232811-20130417200535

Thank you vrey much! :D

& to answer your first question, I suspect that the Tyranid race is simply so massive that even the orks would find themselves outnumbered hundreds to one. Yes you're right when you say they grow stronger after every battle, but so do the 'nids, & the fact that they keep on adapting after every battle, plus the infinite amount of biomass they're going to have after every battle, means they have a huge advantage.

As for the Necrons, well I used the current fluff (please forgive me!) where they're more interested in rebuilding their shattered empire than culling all life in the galaxy. Not because I'm a Matt Wardian, but because I simply wish to keep up to date with the fluff. If you don't like it though, here's an alternative, old lore ending. The Necrons did not oppose the Tyranids because the Tyranids would simply eat everything anyway, & in their weakened state, the Necrons would not be able to oppose them & win. So they hid in their tomb-worlds & let the 'nids just eat everything, & they would then emerge from stasis when the galaxy was full of life again, only this time, without Tyranids or Chaos to worry about (as they'd sealed it for good this time). Then they could just cull to their heart's content.