Can Allied forces come ashore in any zones connected to their beachhead by a blockhouses firing arc?
No. Blockhouse firing arcs (red arrows) indicate which beachheads the blockhouses can fire on. The beachhead (light-colored) arrows indicate which zones units can land in. In the cases of Omaha, Gold, and Juno Beaches, the arrows are reciprocal, but Utah and Sword Beaches can be hit by blockhouses that aren’t accessible from the beachheads.
