Board Thread:Warhammer 40k General Discussion/@comment-27642965-20160211003725/@comment-44249-20160312160127

Geoffreycoconut wrote: Starsword, granted, hence my observation that they should be discounted. Nor are starlet my chosen side, I'm simply making an observation that they excel in areas that the IoM would struggle and vica versa.

I'll be honest here, other than the broad outlines I'm not well versed on the yuuzhan vong (even had to check your post for the spelling). Would I be right in saying they were in some manner force resistant, which in SW would be a pretty major force multiplier Yeah, essentially you're right. The way it worked out in the end was, they had been stripped of the Force by a remnant of their (sentient) homeworld as punishment for destroying it in their internal wars (rather like the Jedi Exile in Knights of the Old Republic II had the Force itself reject her). As a result, they could neither feel nor be felt by the Force, or affected directly by Force powers (though apparently Force Lightning still works fine on them, as discovered by a couple Dark Jedi in Star By Star). During the SDN discussion we agreed to fudge this and say that this would make them highly resistant-to-immune to most Warp sorcery.

As for other possibilities raised:  I doubt the SPARTANs themselves would be able to defeat an actual Space Marine army, just because of numbers. While there's a lot of similarities in training, bio-augmentation, and equippage, the SPARTANs were never intended as anything other than special operations forces: the entire graduating class of SPARTAN-IIs that John-117 was a part of was equivalent to a single Space Marine company, roughly a hundred graduates. Even the cheaper and comparatively weaker SPARTAN-IIIs (Noble Team) and -IVs (Sarah Palmer and Jameson Locke's squad from the new trilogy) still aren't produced in very large numbers.