Suggested by Sauroposeidon
Neither side in this match up have had a full out throw down fight in a while. With ridiculous numbers, shield draining tech, and an exceedingly high willingness to pirate any new technology they come across, the Borg are set to take down the Imperium of Man (Warhammer 40K). But the Imperium isn’t willing to go down with out a fight, and has some of the most visually intimidating and stunningly effective ships in the history of European Sci-Fi.
The setting is the edge of Imperium controlled space. The Borg (Star Trek) have begun the process of attacking an assimilating lesser defended worlds in an attempt to swell their ranks and adapt their defenses to Imperium weaponry while stealing any useful tech they can find. Can the Imperium defend against this new incursion? What if they did not have to deal with the other threats they face on all sides? Will they stop the Borg, or will the cyborg race devour the Imperium, turning it in to just another brick in the wall?
The Borg may not use Time Travel more than the number of times they have been shown to do such in Trek.