Looks good!
It is this same rule for select conditions at multiplayer missions?
Weather conditions:
#1:
It looks that SeaType parameters is always 0.
Probably this value is connected with SH3 (Atlantic/Polar/Middleterrain) - now the mission's locaton depends from environmental data...
I check all missions (single and multi) and all 'SeaType' were 0.
#2:
Precipitations are existed when heavy cloud is selected.
#3:
Is possible to put "default" and "random" buttons?
#4:
Good options is show when the sun rises/sets but I have completely no idea how to check it - it can be depended form time (summer/winter) and uboat's location (polar/equator)...