Gualtino
Gualtino was a Space Marine of the Deathwatch, originally from the Angels of Redemption Chapter.[1b] He was attached to Picket's Watch, where he served as a member of Kill Team Primus, piloting the Kill-Team's Corvus Blackstar.[1a]
Kill Team Primus was assigned by Watch Captain Nergui to anti-Tau operations in the Damocles Gulf.[1b] While travelling through the Sexton Sector, the Kill-Team discovered an old Tau communications hub on QX-937.[1a] Investigating this, the Kill-Team were ambushed by a force of experimental Battlesuits that were being tested on the moon. The Tau force proceeded to kill all eight Marines, including Gualtino[1a], but their remains were uncovered by Nergui[1a], who went on to lead an assault on the Battlesuit's production facility, M'Yan'Ral Base.[1c]
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