It used to be Locus, which I then unlocked and used until I unlocked the Deadeye helmet, which I’m using now and will probably continue using…The only ones I care about unlocking right now are GUNGNIR and Centurion.
N7 Marine Armor Set PLEASE!
achilles, and we are so close 
> 2533274812650916;16:
> Achilles.
>
> Come at me.
Nah, I’ll be at the back of my base. Come get me.
Pathfinder Helmet. I really really like the look of it.
Mark IV Gen 1.
Ive got both of the sets so now its Helljumper and Achilles helmet
ODST elmet
Halo reach operator 3rd varient. I’ve never felt like myself without it.
I wish FOTUS was still exclusive, or even at least a Mythic… I was pretty disappointed.
Without a doubt, the MAKO helmet.
Being a huge dinosaur enthusiast from childhood, I couldn’t believe my eyes when I saw this amongst the obtainable REQs!!! I just looks so smooth and primal at the same time. I’m patiently waiting untill the day I finally pack this gorgeous item…
If a velociraptor would enter the Spartan program, it would end up with a MAKO CHTHONIC suit.
> 2533274979619629;1:
> Hey everyone, I was wondering what id your dream helmet… is it hell jumper,copperhead, achilles? mine was copperhead fangs, but now that i’ve unlocked everything my dream helmet is achilles 100%… (and my company isn’t that far from it either!)
My Dream Helmet is Achilles as it the helmet from the Spartans back in Greek Time but i also Love Kelly’s Helmet, not sure which one that is called but i know it is legendary
> 2533274812650916;16:
> Achilles.
>
> Come at me.
Security or the halo reach style gungnir. I wish they could bring back the halo reach style with attachments.
I like the Mark 4 Arcadia helmet. It is based of Halo Wars, and I really loved that game.
mark V, can’t beet the classics…except maybe mark IV from halo wars.
> 2533274913498763;143:
> achilles, and we are so close
Same here bud.
ASCO
Noble 6’s !!!
If only it was in Halo 5 
THE SEVERED HEAD OF A WARDEN,