AI has been drastically improved, no longer can you memorise the patrol paths and work around them. How they look in each room, hall and area is totally different each time, there is no fail safe area to hide in – if they didn’t look in one area fie first time around then there’s a greater chance they’ll look second time around. If they’re in a room and there’s something overshadowing an area (say a large pillar or a desk), then the guard will walk around to check that there’s nobody there. This involves a lot more quick-thinking, resulting in a heightened tension and a fair amount of improvisation.

With all this increased amount of stealth, it’s a shame (or possibly a godsend, depending on what way you look at it) that the developers have decided to expand the gameplay option from purely stealth to a more Splinter Cell style of play – either go through the game using mostly stealth, or take out the guns (in this case bows) and shoot everything in sight.