Basically it varies from ship to ship.
I construct all the subassemblies and AB deck/horizontal structures, then haze/vertical structures. Put together and touch up. I leave all small parts on the sprue tree, IF the attachment point is the same as the 'glue" point, as I dont want to deal with paint stripping before assembly.
The first pass, I AB at right angles (say, only the horizontal surfaces) without masking the rest (vertical surfaces). Then I mask the painted areas and AB the vertical surfaces. My goal is to get good enough at AB that I can just "point and shoot" and not worry about masking (only right angles). But not yet :)