Unfortunatly stealth is a mechanic that I just don't like at the moment:
1) stealthed creates don't for some reason join into combat and roll initiative which make it at the very least awkward, with some serious potential to abuse
3) An ability to just sneak right behind anyone with no specialisation in stealth is silly. Considering how much stealth relies on vision cones, and how difficlult it is to figure out which parts of the enviroment are lit and not, I personally find it very difficult to take advantage of steath skill - avoding vision cones seem to be the way to go. Perhaps, stealth will get more powerful as characters lvl up and get better in it.
4) As OP showed, stealth is easily abusable in combat, due to it's low cost, and AI inability to react. For the "if you don't like it, don't use it" crowd - yeah, I don't, but I can't figure out a way to use stealth that wouldn't feel like cheating. At the moment it is just not a well implemented mechanic IMO.
