After giving this some thought, my opinion is that while you should be familiar with and know what your play outs are for all sorts of runner strategies, there are only 3 things that you deck has to have built in (deck based) outs for. They are R&D lock, remote lock, and to a much lesser extent dedicated mill.
Currently almost all major runner strategies run a version of these three plans as its primary final game ending condition. Dumblefork uses medium and ice destruction to R&D lock. Eater-keyhole is a variant of mill. Most criminal strategies end with an effective remote lock. Shaper is classically R&D lock, or remote lock sometimes both.
By this reasoning all corp decks must at the very least have an answer to those three game states.