i found it on a legit map only wich i think is the only way
You have to either be an employee of Bungie or have completed all of the Vidmaster Challenges. And there is a myth that there is a "recon skull" apparently in Cortana. Or at least i think it is.
the recon helmet for halo 3 is unlocked by completing all of the vidmaster challenges in halo 3 and halo odst
To activate the Halo 3 Recon Skull on the Floodgate level, first, complete the mission until you reach the area with the large floodgate. Look for a small ledge on the left side of the gate, which can be accessed by jumping from the nearby structures. Once on the ledge, you'll find a series of symbols that you need to interact with in the correct order to unlock the skull. After activating the symbols, the Recon Skull will appear, allowing you to collect it.
you have to work for bungie to get recon
Halo 3 recon was never officially released it is thought though that it was the original name for Halo 3 ODST
no, Halo 3 Recon
i think its is going to be similar to halo 3
Its not the recon that you would get in normal halo 3, it's different, its more like mark VI than recon in halo 3.
Yes
you get all the vidmaster achievements on halo 3 and halo 3 odst
you have to get all vidmaster achievements to get recon.
recon armor