I thought that the "killing in plain view" thing worked pretty well in the "Curtins Down" mission in Blood Money, where you could dress as the actor and shoot the target on stage. No mask there.
On topic, I tend to read the highest and lowest reviews rather than the ones in the middle. The middle-of-the-road ones tend to be more generic, with lots of talk about technical features and graphics (which are a lower priority for me). I'd rather hear someone passionately discussing the creative merits of a game rather than trying to provide a Consumer Report of a product. Homogenity in scores, more often than not, strikes me as a lack of thoughtful critique.