▶▶ 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.
But I do wish it was that way.
‫لكن أتمنى لو كان الأمر كذلك.
Aunque me gustaría que fuera verdad.
Aunque me gustaría que fuera verdad.
Mais j’apprécierais un peu
que ce soit le cas.
Mas eu queria que fosse assim, tá?
Но мне бы хотелось, 
чтобы так оно и было.