Tested with a clean garrysmod

Mode: SP & MP = Singleplayer, Multiplayer
Mods: nothing
Map: gm_construct
Cheats: on
Activated content: CSS, DOD, HL2, HL2 DM, HL2 EP1 & EP2, HL2 LC, TF2

Lemme' say that this addon is underrated... sadly it get no more updates but i keep the hope that you will do something in the future. As example more ghouls would be awesome! However everything depends on your motivation, but im sure the community would love you for keeping up this nice addon.



BUGS
"npc_sjas" is kinda small, any reason why? i remind that it was much bigger at the release of this addon and also in GF3 he is also a way bigger.

If "npc_sjas" was shot and he starts hiding, he is no longer active for some reason.

"npc_sjas" sometimes create some error spam in your dev-console.
Couldn't make effect 'sjas_trail' - Too many Lua Effects (2049)! Are you killing them properly?
WARNING: Broke possible Lua Effect infinite loop! Check your code!

If "npc_jitterskull & "npc_creeper" is moving around you can see a small smoke trail at the floor.

"npc_creeper" keeps moving on death for some reason.



REQUESTS:
May add spawnicons & killicons?
Are they "Entities" or "Npcs"? may remove one category.
Can we make the ghouls check for "ai_ignoreplayers"?
Can we make the ghouls also kill npcs?
Can we have a option too disable the screamers? (client-sided)
As some ppl already said in the comments, could we have some more addon ghouls?