So are warcamps and iron armor still a thing?

[Boner Storm]

I've just hit the 1 year mark and have travelled all through the Kaumo to the Kiesselais to the Driik through the Reemilais... then up to see the Owl Tribe and waaaay southeast to annihilate a Njerpez village then made a round trip again so I could load up their sweet, sweet loot on my cows. Not once have I seen iron armor other than helms, kneecops and coudes. Nor have I seen a single njerp warcamp.

I understand the latter are supposed to spawn in the eastern third of the map? Well... I've been living outside the kaumo for a year and traveled over half the map and haven't seen squat. Is this bugged or has it been removed or is this just no longer a thing?

[Sami of Enormous Elk]

Warcamps are still a thing, and yes, mostly to be seen in the eastern territories - Kaumo, Reemi, Kiesse etc. Wandering Njerpez may be spotted everywhere, but less frequently in the west and north. But it just that not every character necessarily ever encounters all the featured aspects of the game, not even within a full game year.

I believe the iron armours you mention are the only ones available. Back in 2014 (Version 3.20) we made an armour glossary overhaul removing and replacing lots of anachronistic iron armous which might be the ones you crave. Lamellar armour type came to replace many iron armous pices.

Here's snippet from the newslist:
Version: 3.20 (stable)
Released: 22-Dec-2014

        * variety of anachronistic iron armours removed

          Iron great helm, iron halfhelm, iron cuirass, iron breastplate, iron greaves, 
          iron vambraces and iron rerebraces are removed. 

        * helms 

          There are two types of helms, both made of iron: helm and spectacle helm. 

          - Helm covers the skull and is made from one piece of iron hammered into shape.
          - Spectacle helm covers the skull and face. It has a spectacle-like covering for the face, 
            extending down to wearer's chin. 

        * new armour material: lamellar

          Lamellar is eastern armour type used by Njerpez. Lamellar armours are made of square
          or rectangular iron plates tightly fastened to each other with leather straps passed 
          through openings along the edges of the plates. Lamellar technique is used mainly to create
          cuirass and hauberk type armors, but it's also suitable for some spot protection pieces.
          Compared to mail, lamellar armour offers better protection from blunt attacks but only 
          slightly better protection from edged attacks.

          There are 5 lamellar armour items:
          lamellar hauberk, lamellar cuirass, lamellar forearm guards, lamellar shin guards and
          lamellar rerebraces