The Reaper 2001 on netflix

A group of prisoners was secretly commissioned by Gen. Torre to fight those who intend to destabilize the government. And after successfully ridding the system of scalawags, they were promised that their records will be cleared as well as reinstatement in the police service. After the media questioned the existence of the group, the general decides to get rid of them by execution. The group found out about this and decided to fight back.