Honestly I don't think 'sneaking' should be possible as a viable in combat tactic if you are in the middle of the field.
That's my thoughts aswell. You shouldn't be able to "Sneak" while already engaged in combat. Using invisibility is fine, but the concept of sneaking in combat makes no sense, when the enemies are already aware of your presence.
You can clearly see how broken this mechanic can be when you watch tee's play-through as a solo ranger. I'm all for being able to clear the game with only 1 character, but being able to sneak-attack-sneak-attack-etc is pretty stupid.
