The Republic of Korea Army is currently hosting a continuous Overwatchtournament which pits teams of soldiers from various branches against each other. The championship Appears to Be known as the Overwatch Soldier 76 Tournament, with all the ROK Army.
The championship, seemingly put on from the Chief General, according to Reddit user bartlet4us, includes quite a few highly rated players such as a few former professional players currently doing the compulsory military service required of men in South Korea.
In accordance with bartlet4us, the tournament also had substantial prizes such as prize money, as well as a little extra holiday time going to the team that won the contest.
In order to get a better look at the event, take a look at the flow below where the 25th division and 36th division square off against another.