Second; Covenant Armour (Specifically Halo 4's Alternate)
I agree that Halo needs a new look at the classic armors, but i believe that 343 took a step backwards with its design. This minimalist armor alters the ADVANCED Covenant battle gear, creating the illusion that the Covenant Elites have taken a HUGE step backwards in technology. Even if they are a defected clan, they have very ineffective armor choices, which don't match the Sangheili's drive for advances in warfare tech. Their armor has large gaps and bare patches that leave their occupants unprotected after their shields fail. To make it more realistic, I suggest, that is if Elites are present in Halo 5, 343 present more decoratively and aggressively renovated armors that infuse these ideals of basic Sangheili instincts.
i design of the Storm Sangheilli armour is that of traditional armour not the Covenant, the armour you saw win Halo 2 and anniversary