Lets start off by saying that the sun on the map Deadlock is directly in the eyes of one of the teams, and it makes it a lot harder to fight from that side.
Last night I went into Forge on Deadlock, just screwing around a little bit, and messed around with the skybox. Changing it to overcast gives the map a cool new feel, and also makes it so that the sun doesn’t really give one side as much of an advantage. I encourage you to go see it for yourself. I, personally, think that it makes the map a lot better, and they should be able to do it pretty easily.