An Elaboration of My Earlier Comment
The alien species could each have their own cores separate from that of the Spartans, for example:
Elites Cores – Mercenary, Justice, Hierophant, Schism and Storm
Mercenary Core – Banished armour from Halo Wars 2 and Infinite – E.g. Combat (Mercenary), Defence (Mercenary), Ultra (Mercenary), Assassin (Mercenary), War Master (Mercenary), Executioner, Blade Master
Justice Core – Mainly Halo CE and Halo 2 Classic – E.g. Combat (Justice), Defence (Justice), Ranger (Justice), Specialist, Rebreather, Councillor, Guardsman (Elite), Supremacist, Shadow
Hierophant Core – Strictly Halo Reach Armour – E.g. Combat (Hierophant), Officer (Hierophant), Ultra (Hierophant), Ranger (Hierophant), Infiltration, Assassin (Hierophant), Field Marshall, Field Master
Schism Core – Mostly Halo 3 Armour - E.g. Combat (Schism), Assault, Ascetic, Flight, Commando, Hunter, Arbiter, Kaidon
Storm Core – Armour of Jul ‘Mdama’s Covenant Remnant - Combat (Storm), Officer (Storm), Ranger (Storm), Assassin (Storm), War Master (Storm)
Many ranks/armour have more than one name but are represented using synonymous terms to form a cohesive, universal system. E.g. “Minor” being used in Reach for Combat armour, “Zealot” being used for Assassin, “Warrior “and “Warlord” being War Master, etc.
Brute Cores – Banished, Rukt, Respite, Loyalist
Banished Core – Halo Wars 2 and Infinite – E.g. Light (Banished), Leader (Banished), Captain, Bezerker, Marksman, Grenadier, Chieftain (Banished), Legion Master, War Chief, Banished Chieftain
Rukt Core – Mostly Halo 2 with the Chieftain from Halo Wars 1 – E.g. Light (Rukt), Leader (Rukt), Guardsman (Brute), Chieftain (Rukt), Brute Chieftain
Respite Core – Strictly Halo Reach – E.g. Light (Respite), Guard (Respite), Chieftain (Respite)
Loyalist Core – Strictly Halo 3 – E.g. Power, Guard (Loyalist), Stalker, Chieftain (Loyalist), War Chieftain
Each core has its own strict design principles, offering players a choice of preference but with the ability to mix and match across cores. You should be able to tell instantly which core a piece of armour belongs to, but you have the freedom to select pieces from any core.
For example, you can easily see the more sharklike appearance of the Combat (Justice) helmet versus the bulkier Combat (Hierophant) or the detailed Combat (Schism). You go for the Combat (Justice) because you like it the most, but you’re happy to opt for the Ranger (Storm) chest piece and Blade Master arms from different cores.
There is plenty of armour to go around. These cores could really inspire an enormous range of unique and memorable armour variants within alien “body types”.
Choose body type: Spartan, Elite, Brute
Choose body build: (whatever the current body types are called)
Would love it if the artists at 343i saw this. Seeing such individualised cores, call-backs to previous games alongside utilisation of modern armour would bring so much to Infinite’s customisation options, truly representing people’s online Halo identity through some real choice that we don’t currently have in Infinite just yet. I don’t see this level of freedom coming in the short term, but how amazing would it be if we got something like this one day? Infinite is meant to last ten years after all. This would be one way to keep the players coming back.