Which area of the vehicle should be waterproofed when landing across the beach?

The cargo compartment is critical to waterproof when landing across the beach because it often contains mission-essential equipment and supplies that must remain dry to ensure they function properly during landing operations. If the cargo compartment gets flooded, it can lead to equipment damage and may jeopardize the success of the mission by rendering vital resources unusable.

Additionally, maintaining the integrity of the cargo compartment is crucial for operational readiness, especially during amphibious operations where exposure to water is a high risk. While the other areas, such as the engine compartment, passenger cabin, and fuel tank, are important, the cargo compartment directly impacts the ability to execute the mission effectively by preserving the usability of critical gear and supplies.