Thomm's overview maps provide a very clear view of line of sight in the planning and combat stages. They are very useful when setting up troops as they show precisely where your line of sight ends or what is partially blocking it. To install the mod download CC5_Classic_ThommsOVM_plugin.zip. Unzip the archive to the /Config Manager/Plugins/ folder. The overview maps are good for CC5 v5.01 only. They are not compatible with any other mods or submods of CC5. The plugin will replace every stock CC5 map, here's a preview of some of them.