system
Given the following post, respond as if you're commenting on Reddit:
human
[40k] Assuming the "goal" is galactic domination, how can the various races achieve this?

I'd love to see what you guys think about how each of the races would be able to destroy the rest, thanks!
gpt
Tyranids- OM NOM NOM, and one (or more) of the other factions kill the Necrons or the Necrons stay apathetic. 

Necrons-They choose to actually do something.

Eldar- Eldar Gods kick the shit out of Slaanesh.

Chaos-Tzneetch wants to win.

IoM- The Emperor somehow revives (either by dying and reviving or the vast amount of Psykers sacrificed 'fixes' him), and the few remaining Loyal Primarchs are recovered. Then, new Crusade and lots of dead factions.

Tau- They get ignored for a few more millennia. 

Dark Eldar- Slaanesh somehow dies as does everyone else?'

Orks- WAAAAAAAAAAAAAAAAAAAAAGHH!!! In other words, they win by being stubborn bastards to kill completely.