Like freedom says I also believe multiple things will happen at the same time. Especially if some major event leads to the collapse (like a virus outbreak and mass quarantines).
I think 1+2 come hand in hand and then 3+4+5 in quick succession. If you look at it from our point of view as survivalists and preppers, 3+4+5 has already happened or we more or less have come to the insight this is the reality we are living in.
Alea iacta est ("The die has been cast")