You have to try it to get it. They've really tuned the gameplay and the four player co op adds a huge amount of depth. Unfortunately there aren't a lot of PVE co op games like this.
I love this genre, and Deep Rock Galactic and Alien Swarm are the only ones that are on the same level. Alien Swarm is even more tactic and punishing (no reviving at all). Full Metal Furies is also very good, but not as similar to the other three.
I've put more hours into Helldivers 1 than any other game I've ever played. Unfortunately I don't currently have a machine capable of playing HD2 but it's the kind of game I would consider buying a proper gaming laptop just to play.
