Talk:Orbital Drop Shock Troopers

Why are they choosen, yet they can volunter

In Halo: The Flood it mentions the ODST's with having an eye piece on their helmets, this sounds the same as the regular marines in Halo: Combat Evolved. It confuses me, can someone tell me why this is? User:Joshua 029

Is it just the 105th that are called "Helljumpers"? I was under the impression (although I'd have to head to a library and check out the earlier books) that the term "Helljumpers" applied to all ODSTs.