So sitting around, hiding from guards and waiting until they path to the appropriate place so I can either sneak around them or cut their throat is about the most agonizing game play experience I can think of.
Check that, there is one thing that could make it worse, a time limit. Timed stealth encounters, two of my least favorite mechanisms at the same time. I’m getting antsy just thinking about it.
Needless to say Metal Gear Solid and I never got along well.