Here is a USMC AAV for GTA V. These vehicles are used to transport troops ashore. The AAV is able to drive on land and in water. This mod can do both of those things as well. Additionally, it can seat 10 people with a custom seat layout (if the people walk towards the left rear, drive forward a little).
The armament includes a grenade launcher and machine gun. The turret hatch, rear door and top passenger hatches can be opened. Lights work and the wavebreaker at the front can be operated as well.