Fog of war disappears. You can see the AI building its army, which removes the suspense but is excellent for learning unit pathing and strategy.
Red Alert 2: Yuri's Revenge Trainer (+11) for version is a legacy utility designed to bypass the steep difficulty spikes in the game's expansion. This specific "11-option" version is often associated with trainers that provide a comprehensive set of cheats beyond simple resource boosts. Core Features & Functionality red alert 2 yuris revenge trainer 1001 11
Switch back to the trainer and press the designated keys (e.g., F1 for money, F2 for instant build) during the mission. Fog of war disappears