▶▶ 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.
Infiltrating system-protected region.
‫يتم اختراق منطقة محمية بالنظام.‫
Infiltration des
geschützten Systembereichs.
Se infiltra en el sistema defensivo.
Ha entrado en el sistema defensivo.
Infiltration
dans la protection du système.
Rilevata invasione delle difese del sistema.
Região protegida do sistema infiltrada.
Проникновение в область,
защищённую системой.