The Guardian Shield is an autonomous defense satellite designed to fortify base perimeters and safeguard critical infrastructure. Suspended high above the battlefield, it projects a protective energy field that increases the amount of damage a worker can sustain before being destroyed. While primarily a defensive asset, its integrated auto-cannon systematically eliminates weaker enemy units that stray too close, making it a persistent threat in prolonged engagements. These satellites are relics of Old World Earth, launched centuries ago for orbital defense and planetary surveillance. With North Performance long defunct, no new Guardian Shields have been built in generations. Instead, existing units are carefully maintained and repurposed, their shielding technology adapted for planetary warfare. Scarred by time but still functional, these ancient sentinels drift silently in the sky, watching over the battlefield as they always have—enduring reminders of a past humanity can no longer return to.