Onslaught

Onslaught is an extremist sect operating out of Kahndaq and the Republic of Kasnia.

History
In Kahndaq, the group kidnapped a class of girls and killed their teacher. They also went on to execute a number of men with bags on their heads. Over in the Republic of Kasnia, some of them were fighting the Suicide Squad.

Arrow: Season 2.5

 * "Acolyte" (Suicide Squad: Crisis in Kahndaq)
 * "Ascension" (Suicide Squad: Crisis in Kahndaq)