this is in no way made or soported by 3DREALMS if this does not work do not complain to me instead
       THE IDEAS
1 COLORFUL ENEMIES 
this one changes the troopers shirts into random colors when you shoot them
( i have a pcx of this enclosed )
HOW TO DO IT
add these items to the trooper "checktroophitstate" 
underneath the ATROOPFLINTCH 
(you may want to print this out)

ifrnd 30 spritepal 21
else ifrnd 60 spritepal 10
else ifrnd 90 spritepal 15
else ifrnd 120 spritepal 3
else ifrnd 150 spritepal 18
else ifrnd 180 spritepal 12
else ifrnd 210 spritepal 16
else spritepal 11

2 GROWING MONSTERS
every time you shoot these troopers, they grow
HOW TO DO IT
change the genericshrunkcode from 9 and 8 to 512 and 510
put the following under ATROOPFLINTCH (look at number 1)

ifp palive ai ATROOPSHRINK

3 EXTRA HARD ENEMIES 
makes enemies shoot different things
HOW TO DO IT
change "shoot FIRELASER" in one of the trooper's states or "shoot SHOTGUN" for the pig's to "shoot RPG" or "SHOOT COOLEXPLOSION1" or even both.

4 DUKE THE CAPTAIN ?
this one is fun, you press space and duke is invisible ( use F7 ) or to the onlooker, he beams out(for a short while). great for modem or network play
HOW TO DO IT
find "APLAYER 100" 
add these lines before "ifdead"

ifhitspace { spawn TRANSPORTERSTAR sound TELEPORTER cstat 32768 }
else ifcount 500 { cstat 257 }

if you like these ideas,i will be uploading more (hopefully)