I would wager the only line for something like that is if they want to rule or kill everything.
The nominal forces of Order are:
The Craftworld Eldar: Possessed of an inherent sense of racial superiority that dwarfs Seto Kaiba's ego. Ultimately want every other sapient race dead so they can reclaim the galaxy, some actually seek to bring that about. Genocide planets they began terraforming millennia prior in order to dump their own colonists on them.
The Imperium: Genocidal towards any threatening xenos race or individuals who deviate too far from their own social norms.
The Tau: Declare war on any faction that refuses their initial diplomatic overtures. Seek to establish a mono-state ruled by a single caste of their own species.
The Necrons: Seek to exterminate all other races as vermin living on their property or rule them as vassals.
The Exodite Eldar: Like the Craftworlders, but so isolationist they don't even have spacecraft so they basically just sit on their primitive dirt piles like a nest of dinosaur riding hornets that attack anything that gets close.
I can't see these guys getting on for more than a few minutes without the Craftworlder deciding to hold it's breath before it passes out from the stink of the humans and Tau, the Necron going insane and declaring itself ruler of the southern galaxy and demanding a tribute of 10000 bananas, the Tau trying to subvert the Exodite and getting eaten by a velociraptor for his trouble, and the human trying to burn everyone else in the room.