Arknights X RainbowSix: Siege Collaboration Teaser Trailer
Unexpected and unforeseen. Locked and loaded.
The new event will soon be live on August 18, 10:00 (UTC-7)!
HD version:
#Arknights #Yostar #R6S
https://youtu.be/XIb5qS_aNAk

https://twitter.com/ArknightsEN/status/1425336427026464773