Spectres is a Burn Card in Titanfall: Assault. Once called in, it will deploy a squad of four BRD-01 Spectres into the target area via Drop Pod to capture Mobile Hardpoint. They can also be deployed (in pairs) by a Spectre Capt. or Spectre Depot.
Unlike Grunts, Spectres behave much like pilots, attempting to capture enemy hardpoints or attacking the enemy base if all are controlled.