pickable_item.xml - changes base price coefficient, item weights
weapon.xml - changes stat requirement and base def stat and durability and holsters
melee_weapon.xml - changes base atk stat and slash pierce and blunt multipliers
item.xml - defines all item names, item id, and item category id
weapon_class.xml - defines all weapon class variables, sharpen zone, equip slots, combat variables such as sync guard distance, weapon reach, max reach, etc
text_ui_items.xml - all item descriptions and ui descriptions
player_items.xml - defines all item icons, item id, item ui names and ui info
item_manipulation_type.xml - changes item mobility definitions, sharpening animation/availability
sa_behavior_tag.xml - defines all "sa" header behaviors from AI with related file tree and names
sa_armory.xml - defines weapon checks and weapon type and slots used for arming AI before weapon draws
sb_combat_fight.xml - defines weapon type and slots for arming AI during combat/fighting mode