Hi, as the subject says. Does Killer Instincts affect Weapon Immunity and make it "Weapon Resistance"? Probably not, as it is not specified on the ability for an investigator for a monster from the same expansion but I like a clarification. Anybody know this?

No. Not only is it not mentioned, but technically "weapon resistance" doesn't exist to my knowledge. All we have seen is this instance of "weapon immunity."

Fun fact. Whenever someone plays Zoey Samaras and learns they need to fight a random monster, if they state "I don't care what monster it is with my setup I can take it on" they will draw a Lloigor... and usually change their tune very quickly.

At least that's what always happens to us.