In terms of armor based on modern alien aesthetics, this first began in Halo 5: Guardians with the Spartan Helioskrill armor designed by Elites and based on the original Arbiter armor.

In Halo 5 Guardians, peace is shattered when colony worlds are unexpectedly attacked. But when humanity’s greatest hero goes missing, a new Spartan is tasked with hunting the Master Chief and ...