I used to play games like this back in the day. The most famous being Crossfire. AVA as well. Also, some CS type of game featuring werewolves, cannot remember its name. I played those games after Exteel went into the state cRPG is in for the past half a decade, aka dead.
This is not a new concept. But neither is Overwatch. I played the closed beta of Section 8 and Global Agenda in 2009. Both good games that came out before such concepts were popularized. The same can be said about Huxley, which looked wonderful in its beta phase. To this day Star Citizen lacks Huxley game mechanics, which is basically having an open city hub with mission markers that can be PVP or PvE. It was the same kind of shooter like UT3 because it shared the engine.
Koreans did this 10 years ago, the rest of the world is finally catching up.