Drill Rocket
Drill Rocket DRILL ROCKETS
Another unusual weapon design, the drill rocket punches into aircraft armor, chewing through it to damage or destroy critical systems. The drill rocket is a small, thick projectile, with an impeller located midway down the unit's body. When fired at a target, the impeller winds an internal high-torque spring.

When the rocket strikes the target, the impact punches spikes into the target to grab hold; the drill head - propelled by the internal spring - then drives into the target, inflicting enormous damage (particularly to structural supports).