I dont know if this is some sort of bug, or even intentional, but Terminal Overload and heroic patrols on Neomuna no longer award Neomuna gear, but world drops instead. This makes getting the weapon patters completely unreasonable as the only weapons you can get are the TO ones (SMG, shotty, and LMG), the rest of the reward sources are world drops.
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Bungie very clearly said in the TWAB... Heroic EVENTS now drop neomuna weapons. Terminal overload never dropped red borders.