The Eagles of Heaven were an elite military group, made up of freedom fighters. They joined forces with the terrorist group Dark Origin, and were then under the command of Howard Gallow, the leader of Dark Origin. The Eagles of Heaven helped Dark Origin take over the Nuclear weapons facility island in 2020, a number of the troops were killed by the special operative Susie, who was sent by the president of the united states to stop the terrorists. The Eagles of Heaven finally became part of Dark Origin, a couple years after the nuclear weapons facility incident. All of its troops then become known as Dark Origin troops.
Here's a list of the type of troops that were in the Eagles of Heaven army: