Dragging/Lifting deceased people to be more stealth

Imagine killing 3 of the 5 guards as an intruder, then a guard walks downstairs and sees 3 bodies.. they now know that there is an intruder inside the building, but if the bodies were hidden it would incentivize guards to check rooms rather than going from package room to package room which is a bit of an issue in the current meta. All the guards need to do is check package rooms and computers, after that they're are fine to do what they want. But if there was a reason to have to check small rooms that aren't commonly used then it could intriduce a new play style for for intruders, they can kill people openly and then hide the body and the guards will have no idea of any of it. a big part of stealth games like Metal Gear Solid, Splinter Cell, Hitman they all have the ability to drag bodies, and that's because it's a stupid thing to do as a spy to leave a huge bit of evidence of your whereabouts. Only dead people though, not people that are knocked down.