If you haven't gotten or just now reading this (in which In case I forgotten to give this out as an announcement for a Conversation in my current profile post.)

I asked if I did a Percy Jackson and the Olympians & Heroes of Olympus x the Iconic "Halo" video game series which two Spartans would you recommend to be in the story line.

1#: Petty Officer Master Chief Spartan John-117 the "Last" Spartan II to survive Reach and single handed defeated the Covenant and Flood (With help with the Arbiter) and kicked the Banished (a Splinter group of the Covenant) butts hard in the latest installment of the Halo series.

Or

#2 Spartan- B312 "Noble 6" a Spartan III Commando of the UNSC Naval Special Warfare Command & UNSC Army also known the "Lone Wolf" status.