switching out is part of the strategy involved in kongai. if you cant predict it, then you most likely suck, there's an intercept option for a reason. if you don't want people to switch out as much, use tafari. and always losing 10 hp when switching out kills the purpose of switching out, and kinda kills MLM's innate. there's nothing wrong with switching.
i think the reason you cant multiplayer this is because most units do mare damage than their own hit points, so a rogue with a decent dagger and high speed using pierce defenses would one hit kill everything, so using three dagger rogues up front and a bow rogue in back , all fast, you would instantly win pretty much.