One player is the real time strategist while the other four can join in as so-called Executrons (First Person Mode where you take control of a vehicle on the battlefield).
Executive Assault is a real-time strategy/first-person shooter where you can not only build your base and create armies, but also take control of your units and fight as one of them.
This page contains co-op info for Executive Assault on the PC. All information about Executive Assault was correct at the time of posting. Information is subject to change. If you see any errors please email us.