And a client add on version of it is found here. Press f11 and have fun.
Mission Editor is what you need.
That not Map2Dif, but its what the guy needed.
oh i get it so the stuff to the map i making we Creating with Milkshape3D and make some Stuff put it in some folder on Blockland File and i got to slate or something and puting the stuff i made. its right? BLAH