As in most war games, CoH obscures the battlefield to hide areas that have not been scouted or occupied to help with the element of surprise. If you are struggling with this, the Fog of War can be disabled using the steps provided in this tech-recipe:
1. Start your game, and begin playing.
2. Hold down the Ctrl+Shift+@ keys. This will bring up a console.
3. In the console, type FOW_Toggle.
4. Close the console by holding down the Ctrl+Shift+@ keys.
This will toggle off the Fog of War. To toggle it back on, simply repeat the above tasks.