I cannot seem to figure out how to get tesla coils to kill scarecrows or heavy scientists it works when i unload TruePVE but not sure what might be blocking them

try using the rule anything can hurt npcs and make sure that the entity group npcs contains ScientistNPC and ScarecrowNPC

if this doesn't work then use the tpve.trace command. make sure to configure the trace settings first via the config file so that you can limit the spam to the trace log.

i recommend this:

    "Trace To Player Console": true,
    "Trace To Server Console": true,
    "Maximum Distance From Player To Trace": 100.0​

then make sure you type tpve.trace from your F1 game console, and NOT the server console. typing it once will turn it on, and typing it again will toggle it off. toggle it off after a tesla coil attempts to damage an npc. it will save logs to oxide/logs/TruePVE/ and also put them in your console. so if the log is empty for whatever reason then look at your console instead. i recommend doing that anyway as its the easiest way to see the logs