There is no doubt the success or failure of The Division 2 will depend largely on the gunplay. The bullet-sponginess of the first game (one of my all time favorite games), is universally hated. The reason why I loved The Division so much, while others expressed more mixed feelings, is because I played mainly support and high electronics geared layouts, which are less dependent on firearms.
The Division 2 beta gunplay, in the early stages, is awesome. Maybe later on the gunplay will return to super-bullet sponge mode at higher levels, but early on it is very satisfying.
I played The Division 2 beta today, and the game seems very familiar. It was like playing a new and improved version of the first game. I spent about an hour adjusting settings, trying to get a steady 60 frames per second (FPS). The video below is a summary of that game setup.