What is the name of the landing craft vehicle used to transport Marines on land and sea?

The Landing Vehicle Tracked, known as the LVTP-7, is indeed the correct choice when considering the vehicle specifically designed to transport Marines from sea to shore and carry their equipment. The LVTP-7 is a versatile amphibious assault vehicle that is capable of operating on both land and water. It can carry up to 25 Marines along with their battlefield gear and is equipped to navigate difficult terrain after launching from ships offshore.

This kind of vehicle is essential for amphibious operations, which are a key component of Marine Corps tactics, allowing for rapid deployment and movement of forces. The LVTP-7's design, featuring tracks instead of wheels, enables it to traverse sandy and muddy environments effectively, making it particularly suited for the challenges presented in coastal operations.

In contrast, while the Amphibious Assault Vehicle is also an amphibious vehicle, the LVTP-7 is the specific model designation. Other options like the LCAC (Landing Craft Air Cushion) and Landing Ship Tank serve different operational roles within amphibious warfare, focusing more on logistics and support than direct troop transport. Thus, the LVTP-7 stands out as the dedicated vehicle for directly transporting Marines to engage on land.