It is a pretty straightforward wave shooter game. I had fun with it, but it isn’t high art or anything. I enjoy games like Hades or Dark Souls where the fact that you keep losing is an interesting part of the narrative and builds the overall ambiance. Helldivers (2, at least) is not really that sort of game, the plot is more like fun, even sillier Starship Troopers.
I played it properly, but I think is somebody decided to fast-forward through some bits they wouldn’t be denying themselves too much.