The Sparrow S-10 (the first one you get) isn't obtainable by players who already have 3 characters amd have passed "The Warmind" mission.
If it wasn't in your inventory when 2.0 hit, it isn't in the Sparrow kiosk.
The description states "Obtained from "the Warmind" Mission", however if you already have a sparrow it skips the objective that gives the S-10. Deleting your sparrow via bungie.net/dismantling glitch doesn't work either.
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Bungie, please fix this... I really want to complete my base/neutral loadout.