Confirmed acquisition rule
The Steam description directly links defeating powerful foes to obtaining their weapons. It also says those weapons can carry the foe's signature techniques, giving certain encounters lasting value beyond a one-time victory.
Important limitation
“Powerful foes” is narrower than “all enemies.” Background weapons, cinematic props, and standard enemy variants should not be listed as obtainable until a reward screen, inventory entry, official profile, or retail drop confirms them.
Database fields
Each verified enemy weapon page will connect the foe, encounter location, drop condition, weapon category, signature technique, stats, upgrades, and missable status. It will also state the tested platform and patch.
Source and update status
This page is grounded in the official source. It distinguishes published facts from details awaiting the dedicated State of Play or retail build. Rumors, unofficial names, and trailer-only assumptions are excluded.