Ubisoft's "Tom Clancy's The Division: Underground" has been released on PlayStation 4 and new details on its gameplay have surfaced in early reviews.

Gamespot has experienced the "Underground" gameplay and reports that the core mechanics and bullet sponge enemies have not changed, but the choice to engage in a brief surge of modifiable cooperative gaming offered a large welcome option to simply replaying story missions or challenging the Dark Zone.

The website also revealed details on "Underground's" leveling system. According to the article, the system appeared unnecessary and might slow down the humor, which would affect solo gamers in the long run. The report added, however, that even agents diving back in months from now might enjoy the new gameplay alternatives and nature of the title's operations.

As per iTech Post, "The Division" servers went down for scheduled maintenance on Aug. 2 at 9:00 a.m., which ran for about an hour. According to the publication, Ubisoft revealed that the process was to make room for the new PlayStation 4 DLC.

Set in New York, "The Division Underground" allows players to roam around on local streets. The title features vast array of challenges like going through tunnels and facing deadly foes. Along with the new gear sets like the FireCrest, DeadEYE, and Reclaimer, the title is also set to add another gear, the AlphaBridge and the Terminal.

Ubisoft's "Tom Clancy's The Division Underground" runs on Xbox One, PlayStation 4, and Microsoft Windows PC.

Watch "The Division Underground's" trailer here.