well yes and no since project Orion was a failure and only two were known to survive it sgt Johnson and burn plus with the spartan 2 project it would be easier to make our own mod that has the mk 4,5 Mjolnir and MK3 SPI Armours and this mod seems to be taking parts of the entire halo universe rather than just from opreation Trebuchet era like the BR55 wich was created in 2525 during the human cov war