eh, I disagree. The point isn't to be noticed by the guards so they can gang up on you and immediately win.
You don't understand what I am saying.
Among the ways that a person can enter the building, there are bound to be places that would be a disadvantageous position if a firefight were to break out. People are bound to enter these ways. There is no way to accurately predict where a guard is going to be, and there is a chance that a guard may be standing at, or walking by, on of these entrances. This means that in every round, it is pretty much guaranteed that at least 1 Attacker, no matter how good he is, will accidentally happen upon a guard who will surely kill him because crouching players take 2x damage and will not have cover.
This basically means that even if the lives are at 1 to 1, the attackers will have a disadvantage.