▶▶ Pod 153 - Report:

The machine lifeforms not only infected the YoRHa soldier units on the ground, they also infected the <Bunker> with a viral attack, activating a self-destruct sequence.

With this, the 13th Orbital Satellite Base <Bunker> was destroyed. 

2B and 9S avoided infection from the virus and escaped the Bunker before it was destroyed. 
Proposal: Find the remaining surviving YoRHa Soldiers and start another descent-to-ground operation on Earth to fulfill the mission.
We'll be caught at some point.
9S, let me take over your controls.
‫سيمسكون بنا ي مرحلة ما.
‫9.إس، دعني أتحكم بك
On finira pas être repérés.
9S, donne-moi le contrôle de ton unité.
Eles vão nos ver em algum momento.
9S, me passe o seu controle!
Рано или поздно нас поймают.
9S, передай управление своим модулем.