Received a reply from the owner of those plugins
"Hi, to identify any npc from the NpcSpawn plugin, it is enough to check for skinID == 11162132011012, then it is best to use the name of the NPC (displayName) to indicate which NPC needs to be given how many points. This applies to all NPCs except bosses. As for the bosses, there is a Hook (void OnBossKilled(ScientistNPC boss, BasePlayer attacker)), when they kill the boss, which is perfect, which boss was killed can be identified by displayName, each boss has its own individual name"