I think it'd be cool for the game to change in the way you have to play. The fact you can change the brightness in night to such a high extend kind of annoys me for that reason. It removes the challenge of night. But what we if had weather that changes our visibility? Imagine if you had to deal with a snowstorm or sandstorm to push towards the enemies, or you could use one of those storms to conceal your approach or escape. I think that'd be really cool. It would also help those who have problems with snipers be able to close the gap between them. It also presents a challenge to people trying to farm infantry with tanks and people trying to defend sunderers using Spitfires. I think this would be a cool addition to the game and further vary the continents.