Last I checked, the aforementioned services you state (cleaning, laundry, cooking, etc) were all handled by conscripts themselves, and not by some sweet outsourced civilian agency (of course, things could be different for US folks in a warzone). In fact, some high level officers are often assigned a bunch of conscripts to do all their boring work for them. This is mostly the case in countries with a conscripted military, or a large enough population.