Turning off JUST new scientist

Im looking to turn off just the scientist at random loot piles but at the same time I dont want to disable animals from moving and I dont want to disable them from from Military Tunnels if possible. I remember there used to be a command but I cant remember it, Any help?
[DOUBLEPOST=1523132798][/DOUBLEPOST]nvm, found it here: Disabling the new NPC system?

 

Soooo I keep typing ai.npc_enable false and the ingame rcon returns with ai.npc_enable: "False" like the above has stated but it appears that every time I restart the server the AI are back. Ive also done server.writecfg but they still come back... am I missing something?

 

Add to server.cfg
npc_junkpile_g_spawn_chance 0
npc_junkpile_a_spawn_chance 0