^what a nonsense post
So I think this is a solid idea, and if it was really going to be done I think it should be executed like RS2's campaign mode; where each map is played consecutively as part of a inter-level meta game. That is to say, let's say the game starts on Burning Paris; you complete the level like normal and the after game screen would display a overworld map (perhaps a holographic globe art style or something like it's on a horzine display) with let's say 2 choices that players can decide on like a map vote. These simple branching choices could be thought of like progression in House of the Dead, arbitrary and fun fork in the road decisions. Perhaps some levels would have mutators or difficulty modifiers later in the game. You'd only fight bosses on their respective levels (like you'd encounter Hans on Volter Manor), and there'd need to be a final boss on a new map. Perhaps choosing to do a longer route results in better endgame rewards. Additionally this inter-level screen could also display story lore I guess. Other ideas for features include inter-level bonuses or currency, maybe you could get an upgrade to keep your weapons from level to level or start with something specific?
Campaign update coming 2029
Additionally in KF1 there was a campaign mission during the Steampunk event in which you'd progress through objectives to complete the level - these could be added at any point and don't require an entire update or anything. Idk why they haven't returned, the objective mode is so half-assed in comparison.