Act of War: High Treason takes the stunning visuals of Act of War: Direct Action a step further, whilst simultaneously raising the bar in terms of gameplay. Amongst the host of original features are modern naval combat with bump-mapping and physics, fully customizable multiplayer games, mercenary units, improved control system, new units, revised aircraft and artillery, an entirely new campaign set in a new real-world location, new maps, and additional multiplayer enhancements.