Developed during the Neural Accord Initiative, Protocol Bastions were created when Commander Thorne fused condemned operatives' nervous systems with fortress defense grids. These cyber-augmented hybrids emerged from black-site experiments to secure critical command nodes. Their consciousness now distributed across fortified positions, they enforce compliance through shared neural authority across Echo Sentinel operations.

Network-distributed consciousness synchronized across multiple armored cores. Reinforced plasteel casings withstand artillery strikes while energy-dispersing matrices dissipate electromagnetic pulses. Neural architecture integrates defensive protocols with loyalty enforcement algorithms. Holographic projectors display real-time battlefields across armored surfaces.

Serves as living command centers that coordinate Echo Sentinel operations while enforcing neural compliance across squads through cybernetic feedback systems.