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Renegade Lines are defensive perimeters designed to protect important assets to the Forerunners that are outside the Maginot Line. While the Maginot Line is a massive defense network that protects the core worlds of the Ecumene, Renegade Lines are smaller networks in a region of space outside and not connected to the Maginot Line.
Renegade-class ancillas are an advanced level of artificial intelligence that operates Renegade Lines. 02-1147 Lambent Glow commands Line Installation B1-B85, a Renegade Line in the Xilo Tetrahedron, and Shield 5040, an artificial world that contains the rare portal Shehaqim which links the Domain to the physical world. The Line Installations have a hidden Command Base and will sometimes be supplied with armies of Sentinels, Armigers, and Wyverns.