World is much more open than previous games

Three melee weapons: Flail (collects ammunition), Mace, and Fists (creates chains of electricity)

The saw shield can be used to traverse the map

Saw Shield can be thrown at enemies

Less verticality than Doom Eternal; jumping is weightier and heavier now (comparable to Power Armor in FO4)

Glory Kill system has been reinvented

New weapons revealed; Double-barrel Plasma Ehotgun, Single-barrel shotgun

You can nail enemies to the wall with the Nail Gun

The giant mech can be used several times throughout the Campaign

The mech fights with its fists and a double cannon

Mech can perform Glory Kills and has a specialized HUD
The mech fights are going to be dope! Already sounds better than Eternal to me