While I'm seeing lots of details of questionsble accuracy in this article, I am curious about the following line:

The rabbinic treatise, “Sepher Or Israel, 117,” recommends: “Take the life of the Klipoth and kill them, and you will please God the same as one who offers incense to Him.”

https://halo.fandom.com/wiki/John-117

I guess "Master Chief" could be a term one might use for God....

Anyway, if you want more researched info on this stuff, check out Tim Hayes' channel.

https://youtube.com/playlist?list=PL3PzrlVuYimayizz3ynBto5cjSavZhvFa