Halo Reach Helmets

"Halo Reach" helomets are had to distinguish from other types of Halo helmets. There are are only so many ways you can make armor to protect the human head.  Different types of helmets may look a lot a like, but a discerning player can learn to tell the difference. You cannot buy a real Halo Reach helmet, but  the characters you play in the game will ear them on their head.

1. The Mark 5 B Helmet. The Mark 5 B helmet is the standard Helmet used by UNSC forces. It is what you see the Master Chief wearing in the first "Halo" game. The helmet armored version and a heads up display version as well.
2. CQC Helmet. This was the predecessor to the helmets the UNSC forces use in the current time line. This helmet is seen frequently in "Halo Reach." The only variation of the CQC series that differs from the earlier types of helmets is the CBRN. CBRN helmets are designed for continuous operation in hazardous zones. The standard war zone is not considered Hazardous for Spartans.
3. ODST Helmet. You do not see this helmet often in Halo Reach. It has a CBRN variant and a variant with a command module. It does not look much different from any of the other "Halo Reach" helmets despite what the documentation says.
4. Hazop. Wear one of these slightly more distinctive helmets when you are a Spartan going into extremely hazardous operations. The idea of operations hazardous even for a Spartan is scary.
5. EOD. Explosive ordinance disposal can quickly go wrong. A helmet with thick armor can help keep the head attached and out of trouble. Even the face shield of the EOD helmet has extra armor to protect the face from errant shards.