Evidence has bin found that halo could contain parts of Christianity or catholicism. for starters.
Halo
"Halo" = definition: the circle of light shown around a sacred figure such as a god or angel.
John 117
John 117. we all know this is the name and the spartan number of master chief. the main character of halo. but have you ever bin suspicious of John 117?
well if you look around the bible you find this.
The gospel according to John. chapter 1 verse 17 " God gave the law through moses, but grace and truth came through Jesus Christ."
and the game being set in 2552. this is when the end of the world is marked in the bible.
25th of December 2052.
the covenant
these are supposed to be a group of satanists who plot when the apocalypse will happen.
and to do with the covenant:
The jackals
these are also known as "omens" or "Sons of Satan."