Circle of Five

The Circle of Five was a group of scientists and engineers during the Song Initiative that is featured in Mercenaries: Playground of Destruction. They were responsible for the creation of General Song's nuclear warheads and the ICBM technology necessary to deliver them across the world.

History
As the name suggests, the Circle was composed of five people, all members of the "Hearts" suit in the Deck of 52. The team was gathered by Colonel Ji-Won Han, who was also their leader and the only member with a known military title. The other four members, from the highest to lowest ranking, were Hun Hong, Nam-cheol Kim, Min-su An and Hye-min Park. They were experienced scientists and engineers, but they lacked military training, with the exception of the Jack and Eight of Hearts. They were all of North Korean origins, aside the Ten of Hearts, who was Chinese.

Under the watch of Chul Kang, the Circle of Five designed and developed the nuclear weapons for General Song, using the funds from Division 39 to finance the project. For this reason, these five HVTs are much more important than the other Hearts members. After the five scientists have been killed/captured, the Allied Nations managed to get intel for the location of the Ace of Hearts, stopping the production of ICBMs of North Korea once and for all. Before this, the Circle of Five succeeded in developing at least 15 nuclear warheads.