If you have no idea what the hell I'm talking about, here's a sample ZDoom script for the zombie:
actor ZombieMan 3004{ spawnid 4 obituary "%o was killed by a zombieman." health 20 radius 20 height 56 mass 100 speed 8 painchance 200 seesound "grunt/sight" attacksound "grunt/attack" painsound "grunt/pain" deathsound "grunt/death" activesound "grunt/active" dropitem "Clip" 256 MONSTER +FLOORCLIP states { Spawn: POSS AB 10 A_Look loop See: POSS AABBCCDD 4 A_Chase loop Missile: POSS E 10 A_FaceTarget POSS F 8 A_PosAttack POSS E 8 goto See Pain: POSS G 3 POSS G 3 A_Pain goto See Death: POSS H 5 POSS I 5 A_Scream POSS J 5 A_NoBlocking POSS K 5 POSS L -1 stop XDeath: POSS M 5 POSS N 5 A_XScream POSS O 5 A_NoBlocking POSS PQRST 5 POSS U -1 stop Raise: POSS KJIH 5 goto See }}In theory all I should have to do is add in all the scripts from the various games and copy over the functions(like "A_Chase", etc..) and everything should magically work.
Here's a picture of some "Nightmare Demons" I got from Simplicity:
