Mjolnir Powered Assault Armor/Mark IV

I get that it's probably just for gameplay purposes but in the lore the MJOLNIR Mk.IV doesn't have energy shielding, yet ingame the Spartans in multiplayer and the campaign have shields. Doesn't really make sense.

I know it doesn't make much sense from a lore or practical standpoint since by the time of Halo Infinite the Mark IV MJOLNIR Armour would be extremely outdated. However, The Mark V Armour has show up in multiple games.

I always thought the Armour worn by Red Team was extremely detailed and amazing looking, its honestly my favorite looking armour from any of the games, and it seems like such a waste for it not to show up in other games as well. And with the Banished making their return as the main antagonists, and 343 embracing the style of the previous Halo games, it seems like now would be the best time for it.