From Garry's Mod
Warning! Decimal values are for reference only! The actual value may be different between two Garry's Mod versions.
|WEAPON_PROFICIENCY_POOR||0||The NPC will miss a large majority of their shots.|
|WEAPON_PROFICIENCY_AVERAGE||1||The NPC will miss about half of their shots.|
|WEAPON_PROFICIENCY_GOOD||2||The NPC will sometimes miss their shots.|
|WEAPON_PROFICIENCY_VERY_GOOD||3||The NPC will rarely miss their shots.|
|WEAPON_PROFICIENCY_PERFECT||4||The NPC will almost never miss their shots.|