Lord Zardoz said:Koth does have a low Int. But he does have a reasonable Wisdom stat. The single smartest thing he can do is get out of there, have the Manticore shadow them from the air, and go get a raiding group and hunt down the players.
At a tactical sense, he is probably going to go for the most obvious plans, and go for the soft targets or the most direct threats, and probably end up deciding to run away when its just a bit too late and not a sure thing. And if he is caught, he will end up talking just a bit too easily.
END COMMUNICATION
I agree with all this. I was commenting on some of the other suggested plans for auditory deceptions and foresight to secure his plans, etc., etc.
I played Koth as a thug. The PCs captured him and he was uncooperative because he knew what he would do if the situation was reversed.