Yui is trapped in the abandoned supply base, and the BETA have broken through the defense lines.  With no hope of escape, she attempts to destroy the prototype cannon to keep it from falling into the wrong hands...
If a single mechanic could get through 
them, the brass would be pretty upset.
Si un soldado de mantenimiento ordinario como
Si un soldado de mantenimiento ordinario como
Se qualquer mecânico soubesse desmontar, o alto escalão não ia gostar nem um pouco.