Some vehicles, particularly battle tanks, carry a hefty arsenal of weapons. When a vehicle fires it uses its own BS characteristic (representing the BS of the crew) and shoots like other units – all its weapons must fire at a single target unit. Although vehicles can fire on the move their accuracy is severely impaired and their chances of identifying targets and hitting them drops to virtually nil. In game terms this is represented by limiting the number of weapons a moving vehicle can fire compared to a stationary one.
Two further topics govern vehicle shooting: how troops firing from a vehicle are affected, and how line of sight works for weapons mounted on a vehicle.
Errata — Chapter Approved: Main Rules Clarifications (v2.0): A transport vehicle need not fire at the same target as the unit it is attached to, even if the original unit is inside the vehicle.