In light of 'Tradition of Service' being Very Easy, have one with a broader reach.
Sworn Warriors
Every follower of Kaynan is ready to serve, be it spreading Our word, offering the grain from their fields, or taking up arms against the heretics of the West. Every adult knows how to march with kit, how to move and fight in formation, and how to use the weapons of their social class. In this case, the spear and the sling. Of course, they aren't professional soldiers, but they each know that to survive a battle they must act as one.
Further, each common soldier is expected to provide their own arms and armour on the field, and if unable, their Lord will provide for them. This means a bare minimum standard of:
- A long war spear, approximately 10 ft in length
- A sling and shot
- A cuirass and helm of metal or thick leather, lacquered for weather resistance (issued armour tends to have many adjustable straps)
All but the poorest common soldiers (and stingiest Lords) will also provide upper leg Armour in the form of Tassets attached to the cuirrass, and large pauldrons that cover down to the elbow. Combined with the helmet (typically flared, wide-brimmed or even conical) this presents an armoured silhouette that will deflect most ranged weapons. Wealthier individuals will carry a Sidearm, and have Armour that extends further, made of metal, but any more than that and we are stepping into a higher strata that is an as-yet undesigned unit.
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The whole pauldron thing is actually one (of the several) reasons why Medieval Japan never used shields. Their huge pauldrons and broad helmets did much the same job when presented in their typical side on combat stance, iirc.