https://www.gamespot.com/articles/rainbow-six-siege-crossover-event-teased-for-ghost/1100-6460584/

A second special operations mission--this one featuring Rainbow Six Siege--is headed to Ghost Recon Wildlands. In a new teaser trailer, we got a small peek at what the next mission will contain. We'll get a full reveal on July 23. [Update: We've now learned more about Special Operation 2, which will indeed deliver new content starring some of Siege's Operators.]

While the trailer says very little about what's to come with The Badge Special Operation 2 mission, it does give us a good look at what it might center around. The trailer shows off a multitude of different badges from the Wildlands universe, ending with one centered around Rainbow Six Siege.