When loading a mission, I think it loads terrain first and then you are met with the initial briefing screen. On this, it would be great if we could change the mission time. Not date, not weather, just time. Well weather too, if possible, maybe from presets, if the engine allows this at this time in loading?
This is rather than have a bunch of variations of the same mission, one for each time period, sunrise, afternoon, sunset, night etc. Gets messy quick, if you need to fix/add stuff in the mission, and you have 2,3, 4 versions of it.