Black Swan-2
One day before Steve and his team attacked the base, a discreet announcement reverberated in various factions in their vicinity. Since, his enemies knew Steve's team used to monitor usual channels for any confluences they used unorthodox methods to deliver the news.
It was simple message, a place's coordinate and the purpose of it's existence. Many factions ignored it all right because they didn't believe it to be true. A human trafficking center in their backyard? They had been living there for decades now, if that sort of thing existed under their nose, they would have gotten rid of it years ago!
One such faction was the Black Swan, the special forces that detached from the previous federation and was officially disbanded after the peace treaty. The government didn't recognized them as a group and had officially disavowed them but they existed because every country needed able soldiers especially the ones that could do dirty deeds from the shadows.