There are two ways that I know of to go about making a night map.
Way #1: Once you have completly finished your map(and I mean complety finished it because after you've edited it and use Battlecraft on it it will crash during the load)extract your map. Lets say you want to have the night skybox that is on the RtR map Monte Cassino in your map. Now you extract Monte Cassino. Locate the "Sky and Sun.con" from the extracted Monte Cassino. Then go to your extracted map, find the "Sky_and_Sun.con", and replace it with the Monte Cassino one. Then repack your map, load it up, and gaze amazed at your night sky.
Way #2: Once you have completly finished your map(and I mean completly finished it because after you've edited it and used Battlecraft on it it will crash during the load)extract your map. Then go and reskin any skybox in BF1942 into a night skybox. Once your satisfied with your skin save it. Lets just say that the skybox you skinned was the "Iwo Jima" skybox(you had better have set the skybox that you were planning to reskin during the creation of the map). The next step is to make a new folder in your extracted map's main folder called "customtextures". Do not use any capial letters or spaces. Also do not use the quots. Now place the .DDS files of your reskined Iwo Jima skybox into the customtextures folder. Now in the init.con you'll need to add the line in BOLD to it.
rem
rem **** Initialize level specific rendering settings.
rem
ShaderManager.setTextureParam envmap bf1942levelsmapnameTexturesENVMAP_G_.rcm
renderer.globalLodPercent 1
renderer.globalAmbientColor 0.100000/0.100000/0.100000
renderer.ambientColor 0.120000/0.110000/0.120000
renderer.diffuseColor 0.350000/0.300000/0.200000
renderer.specularColor 0.300000/0.300000/0.300000
renderer.vertexFogEnable 1
renderer.fogColorVec 0.680000/0.620000/0.550000
renderer.animatedMeshAmbientColor 0.15
textureManager.alternativePath Texture/Russia
texturemanager.alternativepath ../../bf1942/levels/your map name/customtextures
shadow.shadowColor 0.550000
Now after you have done that you can repack your map, load it up, and enjoy your night sky!
