Its nice to see such a collection of mjolnir armor knowledge. It would be nice if the books or games explained the variations in terms like Mark V Mod 2. The "mod" designation denoting a variation to a mark but not significant enough to bump it to a higher Mark.
The halo books I have read seem to purposefully stay away from naming the armor models with "Mark" designations and simply refer to it as MJOLNIR. I do know that the Mjolnir armor used in the first Halo was the first armor to have shields. The unshielded armor did not have biofoam but had injection ports for biofoam, the shielded model had biofoam reservoir built-in. Spartan IIs were issued their first shielded MJOLNIR mere days before Battle of Reach and "the Pillar of Autumn" discovery of the first Halo ring. At the time that Dr Halsey fitted the Spartan IIs with the shielded MJOLNIR she said that it was the full realization of the MJOLNIR project, as if the armors leading up to it were like prototype stages.
FYI Ghost of Onyx has Kurt (Spartan-051) "lost" while on an EVA in the "vacuum-enhanced variant" of the then unshieled MJOLNIR. So there were variants of the older "Marks" too.
I suspect the Halo Wars MJOLNIR armor has to be the "Mark IV" [unsheilded armor] b/c the timeframe has to be between first contact with the Covenant (Harvest) and the Battle of Reach/Halo. The "Mark IV" was the only publicly acknowledged armor on the battlefield at that time. The SPI armor was around but it was under deep black secrecy only used on suicide missions, not for interaction with regular forces.
The halo books I have read seem to purposefully stay away from naming the armor models with "Mark" designations and simply refer to it as MJOLNIR. I do know that the Mjolnir armor used in the first Halo was the first armor to have shields. The unshielded armor did not have biofoam but had injection ports for biofoam, the shielded model had biofoam reservoir built-in. Spartan IIs were issued their first shielded MJOLNIR mere days before Battle of Reach and "the Pillar of Autumn" discovery of the first Halo ring. At the time that Dr Halsey fitted the Spartan IIs with the shielded MJOLNIR she said that it was the full realization of the MJOLNIR project, as if the armors leading up to it were like prototype stages.
FYI Ghost of Onyx has Kurt (Spartan-051) "lost" while on an EVA in the "vacuum-enhanced variant" of the then unshieled MJOLNIR. So there were variants of the older "Marks" too.
I suspect the Halo Wars MJOLNIR armor has to be the "Mark IV" [unsheilded armor] b/c the timeframe has to be between first contact with the Covenant (Harvest) and the Battle of Reach/Halo. The "Mark IV" was the only publicly acknowledged armor on the battlefield at that time. The SPI armor was around but it was under deep black secrecy only used on suicide missions, not for interaction with regular forces.