You can shoot and ride.
Prerequisites: Ride (rank 1), Mounted Combat
Benefit: You take only half the standard penalty for riding while shooting: -2 during a double-move and -4 during a Run. “Riding” includes both animals and vehicles, and “shooting” includes all manner of ranged projectiles: firearms, bows, etc.
Normal: You take a -4 to attack with ranged weapons during a mounted double-move , and -8 during a mounted run.