Don’t you find it weird that the fog is white and bright in a night setting? A good map usually uses a dark skybox fog color in night. I really enjoy this campaign, but the current fog color in the night levels ruins the atmosphere.

I suggest changing it to a much darker gray, such as {15, 15, 15}, like what this mod does:
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3333056417

Before (original):
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3498284525
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3498284498
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3498285584
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3498285546

After (with mod):
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3498286469
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3498286422
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3498286542
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3498286518


The current fog in Map 4 especially looks very unnatural and out of place. I hope you’ll consider this suggestion — it would greatly enhance the atmosphere of your map. This not only improves immersion, but also increases visibility and makes the map feel more open.