June 2013, restarted in February 2014, and then restructured as Phase 1 of the Amphibious Combat Vehicle (ACV) program, which includes the previous MPC competitor entries. The Terrex 2 was publicly unveiled in September 2015 at the DSEI 2015 convention. On 24 November 2015, the Marines selected the SAIC Terrex, along with the BAE Systems/Iveco SuperAV, to move on to the engineering and manufacturing development phase of the ACV 1.1 program. SAIC was awarded a $121.5 million contract to build 16 vehicles by late 2016 for testing. The Terrex submitted for the ACV program, called the Terrex 2, was designed to enhance situational awareness, with the troop commander's station equipped with a screen covering all aspects outside the vehicle, also visible to the squad to enable them to see what they would be exiting to. The driver's station was equipped with several screens with obstacle avoidance, situational awareness sensor feeds, and other features. Although the Terrex is specialised in ground operations, it also meets the minimum requirements for safe sea operation. The Terrex has a V-over-V hull that creates a crush zone to reduce the impact of a blast on the floor; this creates a spacious interior. Footrests attached to seats across the aisle keep the Marines' feet from absorbing blast energy. The vehicle uses a central tire inflation system, can swim in water, and has excess buoyancy of 23 percent. It weighs 32.5 tons (), carries three crew and 11 embarked Marines, and can reach on paved roads. In June 2018, the Marine Corps selected BAE Systems for the ACV program. Terrex 3: Australian Army: LAND 400 Program Referred in Australia as the Sentinel 2, it was specially developed by ST Engineering and Elbit Systems of Australia (ELSA) to meet the Australian Army's requirement for an armored reconnaissance vehicle. A further development of the Terrex 2, it is better protected and carries a much more powerful armament but lacks amphibious capability due to its 35 tonne weight. Designed with Elbit Land System's MT30 modular turret, the vehicle is operated by a crew of 2 and can carry 11 dismounts. It was outbidded by the Rheinmetall Boxer CRV in early 2018. Design As with a number of other recent wheeled armoured vehicles, the Terrex is of modular design with various levels of armour protection and weapon systems being marketed up to a gross vehicle weight of 24,000 kg. Despite its