[McAllister]

I'd be amenable to a rule that you have to succeed on a Tactics roll (or a roll against the same combat skill your foe is using) to know what maneuver they've employed. It's similar to some of the stuff in Tactical Shooting that limits the PCs' advantages of having perfect situational awareness and impressive cool under fire by default. Only appropriate for a campaign that's interested in that level of combat detail, buy hey, some of them are.