The Adrenaline Vault has an interview with Lead programmer Mikko Nurmi and designer Nikolai Soderstrom about Contract Killer, the upcoming stealthy-shooter from IncaGold:
Describe an early mission to give us a feel for what Contract Killer is like to play.
Part of the game mechanics is that Dominick has scoped a bit of the surrounding area ahead of time, so he knows the general layout of the mission, the location of the objective, and where potential guard concentrations may be (although this info is sketchier). So the player can then plan his approach. As in most stealthy shooters, the player is fragile in direct confrontations, so he must pick his targets with care, and try to stay out of firefights.