Loaded up the plugin and it stopped the scientists at the arctic research facility from moving.  They still shoot when you get close, but they're stranded.  Unloaded the plugin and when they respawned, they were moving.  Looks like a bug needs to be squashed here.

I tested Artic base out and all the NPC's are responding well, they are hiding, retreating when attacked and then attacking as normal.
You might have a server setting that is interfering with their function,

this plugin will not stop scientists it will delete them. This plugin also has a log, show us that. Looks like a bug needs to be squashed THERE.

This plugin would have no effect solely on your scientists. All it does is delete scientists with improper meshes.