Intertwining Universes

In a universe where humanity is fighting against monsters of darkness, a Spartan from another world where humanity is fighting against xenomorphs and a slip-space bomb screws up entirely, sending the main character, Zephyr, into a completely different realm. What will happen there?
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{Henlo, everyone. Rune here! I just wanna give a huge shoutout to @SterlingDowall for inspiring much of the story here! Fire Team Zulu and the revised story lent massive inspiration to the storyline in here. I also wanna give a huge Shoutout to all the other writers who inspired some of the storyline as well!}