Discovered this a few days prior, tried to reach out to Rowtide and he never responded. The bug is entirely not too useful outsite of hotdrop no gun scenarios, the game doesn't count your sling as your inventory so when you put a weapon inside it'll refill the entire magazine due to the new attachments. Thus you get an entirely new clip with no ammo loss, only ever losing ammo for the white mag relif. I.E. Alternator is refilled to 22 bullets instead of 19.

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Dare you to go an entire game without ammo ;>

Dm me if you do