U can create WADs via WED

just create a new Map.. and in the left Menü, call Textures -> rightclick bookmarks -> open WAD

In the window that appears now, you can create a new WAD, load a WAD or Save a edited WAD.


U can use 3DS or OBJ - via MED
Simple open MED, File -> Import from XYZ

Where XYZ is 3ds, fbx, x or ascii