Mobile Suit Gundam
Twanning is a Zeon officer stationed in the control room of A Baoa Qu. When Kycilia Zabi assassinates Gihren Zabi, Twanning quickly calms down the other soldiers and gets them following Kycilia's orders. Kycilia later gives him orders to surrender A Baoa Qu, telling him that she'll arrange to get him back when they exchange POWs.
His fate is unknown but it could be highly presumed that he had perished in the inferno happening throughout A Boa Qu when the Zanzibar-class ship was destroyed by Federation ships.