Open multiplayer editor. Setup a Zeus game mode using a Logic/Virtual Entities/Zeus linked to a game master; taking note of where the Logic/Virtual Entities/Zeus is placed. Start the game as Zeus. drop a mortar on the Logic/Virtual Entities/Zeus.
Using the AI:
Open multiplayer editor. Setup a Zeus game mode using a Logic/Virtual Entities/Zeus linked to a game master; taking note of where the Logic/Virtual Entities/Zeus is placed. Start the game as Zeus. place a squad near and facing the Logic/Virtual Entities/Zeus' location. Remote control one of the units and kill the other members of the squad until they attempt to kill you. Wait for the AI to spot and shoot the Logic/Virtual Entities/Zeus.