rank to unlock halo 4's gungnir helmet

which rank do you need to have to unlock the gungnir helmet?

One i have is the challenge one.Is there a lvl one?

It’s not unlocked by a rank, but a commendation mastery. Give me a minute and I’ll find it for ya.

EDIT: You need to get the commendation Slayer Victory to master

Spartan slayer commendation I believe…

> Spartan slayer commendation I believe…

Getting Spartan Slayer to master unlocks CIO armor



> Yo

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