"Hostiles incoming. On intercept. But not for us, sir! They’re after the Halleck!"
―CL-33/890 informing the crew of incoming enemies[src]
CL-33/890 was a clone trooper2ndlieutenant that fought in the Clone Wars under Mace Windu for a short time. Some of his clone trooper partners were Four-One, CT-6/774, and, and CT-014/783 on an LAAT/i gunship. Four-One was a pilot, CT-6/774 and CT-014/783 were turret gunners, and CL-33/890 was the navi-control trooper. Their gunship was assigned to a Republic medium cruiser, Halleck, commanded by High Jedi General Mace Windu.
CL-33/890 and his partners manned a gunship. There was a pilot, two turret gunners, and a navi-control trooper. CL-33/890 was the navi-control trooper. During the Battle of Haruun Kal, their gunship sustained heavy damage, but the troopers still survived and so did the gunship. Later on, he, his partners, and his gunship helped in the post-battle rescue of a group of stranded clones.