Your task as commander is to regain the planet. There are 58 vehicular, infantry and aerial units in all, from the huge Leviathans to the smaller Predator battle tanks. Your infantry units can also be armed with rockets and cannons. There are two game modes, plus a tutorial game. A quick game allows you to play a set battle, of which there are four types - a simple engagement, rescuing a besieged unit, an assault on an entrenched enemy, and a flank attack.
Battle takes place on a wide variety of terrains.
The campaign game mode allows you to fight for control of the planet. The planet is divided into different regions, with each providing different resource points. These are needed to repair units or to raise new ones. In terms of tactics, there is a movement phase, a fire support period, and a fire phase. During your movement phase, the enemy can fire upon you.