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The ERS was a feature that allowed David Crenshaw to intercept an enemy aircraft, dodge a missile, or create a safe path through enemy territory with the help of paths represented by triangles on the plane's heads-up display using the on-board computer.

The ERS was part of Artemis Global Security's proprietary technology. The United States Air Force also used it. Crenshaw's ERS was subverted during Operation: Backfire.

Colonel Frank Ostreger's DDI also used ERS flight paths to fly through base defenses. The Firestorm satellite also used ERS flight paths for docking procedures.