When playing any game using the achievement game settings as created in the road map, almost every turn you will get a crate drop. Since you also have unlimited teleports, you can collect all 100 of the required weapon or utility crates in one game (and then turn the setting to zero in your achievement game settings file to speed up future games). Simply create a clone game and have the clone skip their turn each time while you collect crates. You can unlock "Nightingale" at the same time.
The achievement pops in-game, and you can quit out immediately afterward if you wish.