ACTOR NormalZombieManSpawner replaces ZombieMan
            +NOCLIP
            +THRUACTORS
            States
            {
            Spawn:
                    TNT1 A 0
                    TNT1 A 0
                    TNT1 A 1
                    TNT1 A 1 A_JumpIf(ACS_ExecuteWithResult(101) == 1,"SpawnVanilla")
                    TNT1 A 1
                    TNT1 A 1
                    TNT1 A 1 A_SpawnItemEx("FastZombieMan",0,0,0,0,0,0,0,SXF_NOCHECKPOSITION)
                    Stop
            SpawnVanilla:
                    TNT1 A 0
                    TNT1 A 0
                    TNT1 A 1
                    TNT1 A 1 A_SpawnItemEx("NormalZombieMan",0,0,0,0,0,0,0,SXF_NOCHECKPOSITION)
                    Stop
            }
    }

    ACTOR NormalZombieMan : ZombieMan {}

    ACTOR FastZombieMan : ZombieMan
    {
            Monster
            +FLOORCLIP
            States
            {
            Spawn:
                    POSS AB 10 A_Look
                    Loop
            See:
                    POSS AABBCCDD 4 A_Chase
                    Loop
            Missile:
                    POSS E 5 A_FaceTarget
                    POSS F 4 A_PosAttack
                    POSS E 4
                    Goto See
            Pain:
                    POSS G 1
                    POSS G 1 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 K 5
                    POSS JIH 5
                    Goto See
            }
    }

/////ACS

script 101 (void)
{
   SetResultValue(GetCVar("sv_fastmonsters"));
}