―Unit 07's last word, as he realizes the trickery of Rex, before being shot in the head[src]
After CommanderCody and CaptainRex were presumed "pulverized," he and two other droid commandos, Units 08 and 09 guarded the entrance to the station. He was surprised to see Unit 26 still alive, only to find out too late that Cody and Rex were still alive.
The droid opened the blast doors and was blasted by Rex, leading the clone troopers right into the base.