Halo: In League with the Spartan

Falling, that was all John-117 could remember. And her, she's gone. but before the Master Chief could get recovered, debris from ships and other radioactive material provide the right environment for a third party to open a man sided slip-space portal. On other side he is greeted by a forerunner A.I. who states that John is currently several million light years away, to his amazement. And another thing was there to greet him, to further add to his astonishment. After getting an armour, weapons and logistics upgrade, John is accidentally taken in a universe filled with costumed vigilantes stopping crime, along with their corny phrases.

This is a crossover between JL and Halo franchise, my intel isn't very good on the JL Universe so any help on some facts and story would be appreciated.