I finished Metro Exodus about one year ago I think, and maybe this is just because I don't remember it well, but I think this is the best part of the game. The lineal level design is much more reminiscent of Metro 2033/Last Light, and tbh I like the linearity much more than the open levels Metro Exodus has. The first section where you need to clear this stinky basement with a flamethrower was just incredibly immersive.