Tide of Iron Next Wave Game Next Wave Tide of Iron core set has everything you need to play TOI and all of the expansions! Action-based gameplay with opportunity fire, close assault, combined fire and more Modular, double-sided map boards for nearly limit-less combinations that promote re-playability Hundreds of detailed, historically accurate plastic figures; Customizable squads for flexible tactics Historical scenarios that determine the forces for each side, the map board layout, victory conditions and other details