The only way to beat the giant Beta is via direct attack to the brain, forcing Ogre into a very perilous situation. Auctioneer risks his life to locate the brain, and Ogre uses Number 11 to take it out and defeat Beta.

He reunites with the Squad and celebrates, but his joy would be short-lived.
Man, I never even imagined 
the world would come to this.
يا إلهي، لم أتصوّر البتّة
أن يحلّ هذا بالعالم
Mann, ich hätte mir nie ausmalen können,
wie sich die Welt verändert …
Jamás me imaginé
que el mundo acabaría así.
Jamás me imaginé
que el mundo acabaría así.
J’aurais jamais imaginé
que le monde finirait ainsi,
Che roba.
Non avrei mai immaginato
Caramba, nem imaginei
que o mundo ficaria assim.
Я и подумать не мог,
что мир дойдёт до такого.