Which legion/chapter...

[Mr_Puddins]

..would most likely to team up with xenos?

I can imagine who the least likely would be..

[The_Dipl0mat]

Probably Ultramarines

EDIT: Maybe Blood Ravens too? I forget if they played a role in Winter Assault when the Guard temporarily worked with the Eldar

[Deadoon]

Many of them are willing to make temporary alliances with certain non-imperial xenos(have to be specific about this, the impereium HAS non-humans in it).
Dark angels already are aligned with the watchers of the dark, which are sort of xenos but technically part of the imperium so I don't think that counts much. Eldar alliances are almost all based on a shared goal, which after achieving may break down afterwards, or the two might just go different ways. Using of orks as a weapon against other threats isn't out of the question either.

Odd one is grey knights, but they aren't a proper chapter, more a space marine organization. They will go out of their way to assist the eldar if their soul stones are at risk, due to those being powerful boons to the forces of chaos.

[Mr_Puddins]

Originally posted by The_Dipl0mat:

Probably Ultramarines

EDIT: Maybe Blood Ravens too? I forget if they played a role in Winter Assault when the Guard temporarily worked with the Eldar

yea those are kinda the obvious ones... xD

Originally posted by Deadoon:

Many of them are willing to make temporary alliances with certain non-imperial xenos(have to be specific about this, the impereium HAS non-humans in it).
Dark angels already are aligned with the watchers of the dark, which are sort of xenos but technically part of the imperium so I don't think that counts much. Eldar alliances are almost all based on a shared goal, which after achieving may break down afterwards, or the two might just go different ways. Using of orks as a weapon against other threats isn't out of the question either.

Odd one is grey knights, but they aren't a proper chapter, more a space marine organization. They will go out of their way to assist the eldar if their soul stones are at risk, due to those being powerful boons to the forces of chaos.

I'd have thought that the Dark Angels would've been more dogmatic and purist. Though, the Watchers thing is a good point. I wonder if the Watchers are those same dudes from Caliban from the Horus Heresy story that featured The Lion...

I could definitely see the Orks more or less channeled at an enemy or positioned around to effectively use them as buffer or first wave.

Now the Grey Knights I'd have never thought of.. but you make a very good point - for the sake of denying Chaos the Soul Stone(s).

______

As far as "Traitors" go the Alpha Legion obviously has obviously been heavily influenced by non-Chaos Xenos entities/cabal... (Horus Heresy series book that featured them)

[zmanbuilder]

Despite the memes, i think salamanders can play nice with others.

[Mr_Puddins]

Originally posted by zmanbuilder:

Despite the memes, i think salamanders can play nice with others.

I'll be honest.. of all the Legions I know the least about them. All I know is they like fire weapons. xD

[The_Dipl0mat]

Originally posted by zmanbuilder:

Despite the memes, i think salamanders can play nice with others.

Well, I'd comment on the whole "Eldar child murder" thing but what chapter hasn't killed children tbh

[zastcat]

blood angels have a bit of a history of teaming up with just about anybody to fight tyranids, ultramarines team up pretty often because as the posterboys of the space marines (who are in turn the poster boys of the setting) the writers try to involve them in everything whether it makes sense or not

really thinking on it the cases of space marine chapters that absolutely wouldn't atleast make a temporary alliance to fight something else are probably pretty heavily outnumbered by those that will, black templars are fanatics even by space marine standards but even they technically had some time working alongside xenos while helping guilliman get to terra after cadia fell

there's also the matter of both the inquisition and deathwatch making use of assistance from sanctioned xenos like the jokaero so there's likely more than a few cases where even the more vocally opposed have to just deal with it because somebody higher up said so

as for chaos, they generally keep the same low opinion of xenos that loyalists do but we know some warbands have no issue working with xenos mercenaries but as far as theoretical alliances, thousand sons absolutely would

1 of the most cruel points in the ynnari stories (what few there are since they can't really advance without gw having to either make them lose or let them kill slaanesh... so never happening) involves ahriman giving up a certain victory because yvraine managed to restore some rubric marines to life and he thought there was a chance to undo the rubric entirely... she then killed the newly restored marines and ran as soon as ahriman got rid of the trick that was about to wipe them out

not the best point in favor of friendliness but it still shows that if you dangle a way of undoing the rubric in front of them there are absolutely thousand sons who will drop everything for it

[Mr_Puddins]

Originally posted by zastcat:

blood angels have a bit of a history of teaming up with just about anybody to fight tyranids, ultramarines team up pretty often because as the posterboys of the space marines (who are in turn the poster boys of the setting) the writers try to involve them in everything whether it makes sense or not

really thinking on it the cases of space marine chapters that absolutely wouldn't atleast make a temporary alliance to fight something else are probably pretty heavily outnumbered by those that will, black templars are fanatics even by space marine standards but even they technically had some time working alongside xenos while helping guilliman get to terra after cadia fell

there's also the matter of both the inquisition and deathwatch making use of assistance from sanctioned xenos like the jokaero so there's likely more than a few cases where even the more vocally opposed have to just deal with it because somebody higher up said so

as for chaos, they generally keep the same low opinion of xenos that loyalists do but we know some warbands have no issue working with xenos mercenaries but as far as theoretical alliances, thousand sons absolutely would

1 of the most cruel points in the ynnari stories (what few there are since they can't really advance without gw having to either make them lose or let them kill slaanesh... so never happening) involves ahriman giving up a certain victory because yvraine managed to restore some rubric marines to life and he thought there was a chance to undo the rubric entirely... she then killed the newly restored marines and ran as soon as ahriman got rid of the trick that was about to wipe them out

not the best point in favor of friendliness but it still shows that if you dangle a way of undoing the rubric in front of them there are absolutely thousand sons who will drop everything for it

OOO spoiler allert.. xD

Ya I'd think Black Templars / Imperial Fists would rather die than help or receive Xenos help... xD

I could totally see Thousand Sons or say Word Bearers working with Xenos if it was associated with some kind of lore/sorcery discovery. And as far as Erebus I really feel like he doesn't give two poops about the Imperium, Emperor, or their 'Truth" and never did.. Tangent - I feel Like Erebus himself engineered the entire Horus Heresy. Tho, I'd say little more than that cuz I wouldn't want to give anything away. I'm a huge fan of the Horus Heresy series. I've read the first 20 or so of them. A couple 40k Omnibus too.

[Nuke2099]

Originally posted by zmanbuilder:

Despite the memes, i think salamanders can play nice with others.

Unless its Eldar children.

[Tyvolus]

Originally posted by The_Dipl0mat:

Probably Ultramarines

EDIT: Maybe Blood Ravens too? I forget if they played a role in Winter Assault when the Guard temporarily worked with the Eldar

ya