     
     To edit your HERETIC.WAD you first have to rename your wad to DOOM.WAD.
 I've made a BAT file for this called "RNAMEWAD" so I won't have to 
 rename it every time. You can even copy it as DOOM.wad, but that takes up
 space, you might not have the space. The reason for renaming the WAD is 
 because Heretic uses the some game engine as Doom, so the map format has 
 to be ExMx for the editor to work.  
     
     All you have to do now is to use any Doom editor you want, I used DEU,
 but I would recomend using EDMAP123. The only thing that is different in
 Heretic, compared to Doom, is the THING id number, for example a candel in
 Doom is a time bomb in Heretic.
 
    I  made the things list for you, called HTICLIST.TXT. It has all the things
used in heretic, weapons, monsters, decoration..., they each have a code for
them. When I use DEU all I have to do is to just type in the number of the
thing and the Heretic engine will use it in the game, DEU might give you
something different, becuase it uses the DOOM id number, so don't worry.
There could be some things missing so if you find something just add it to   
the list. Print it out and use it while editing.
   
   After editing your map you have to rename the DOOM.WAD back to HERETIC.wad
and type in "HERETIC -FILE XXX.WAD", XXX stands for the name of your wad.
  I've made a bat file for this too, called "PLAY".  Just insert your wad 
name in the place of the xxx. That is it...
