I am in the botanical gardens and in the aviary and you have to take down the operator without being seen by the other guards or knocking any of them out. i have tried several times, what is the best way to do this?
there are a number of ways. i didn't know about the easy ones when i played it so i did it the hard way though.
there is a vent to the left of the room when you get there that leads to a ledge up high. you can grapple over to another ledge up above too. from there you could glide kick down the next guy and they won't see, then just climb up and stealth chokeout the leader.