MOBILE SUIT GUNDAM: Twilight AXIS

Late U.C. 0096. The Earth Federation government, organizes the Mastema special forces team to enter and investigate part of the shattered asteroid Axis, which is drifting in the Earth Sphere. The investigative team accompanying Mehmet includes two civilians named Arlette Almage and Danton Highleg, who were formerly an engineer and a test pilot.
While investigating, they come under attack by a private milita. As the fighting escalates, Arlette, following a secret agenda of her own, makes her way to the wreckage of the Sazabi that lies abandoned on the surface of Axis...

(Source: Gundam.Info, edited)