I don't mind clouds, even weather if they can do it with out killing frame rates, but to be used as another way to avoid a fight? No thanks, give me bright sunshine so they can't hide, only run.
I would love to see parts of the map where clouds are at 5000 ft and solid so you can't see through them at all make them 1000 ft thick and you can't even see the ends of your wings when you are in that 1000ft ducking into clouds would mean something. Also you could run missions over or under the cloud deck or in it for that matter. This is real life reality if your above the clouds your not seeing a plane flying under them. Rain storms would be cool too.
If you think you are having a 1v1 in the Main Arena, your SA has failed you.