My kid, who goes by the name Noisy, has been working on upgrading the SCN Editor for Swat 3 for a while now. This tool is very useful for this mod when upgrading the textures for Swat 3 and for fixing map mistakes. An example of one of these mistakes is that sometimes the map makers would place a texture backwards. Many of the original textures for the game were so low resolution that the developers didn't notice when they placed a texture backwards. However when the texture gets replaced with a higher resolution version the error is very glaring.
Now with the SCN Editor I can flip a texture in a map and it won't break the lightmap. Up until recently when we attempted this it would always break the light map and the texture would be rendered dark.
Thanks again Noisy for this great breakthrough!