Bethesda released a teaser trailer to promote gameplay being shown at E3 2015 on June 14 , 2015 ; the trailer depicted the double-barreled shotgun and the Revenant , a monster returning to the game . On June 14 , around 15 minutes of gameplay footage were shown at E3 . Regarding the progression system , Marty Stratton thought that it was important to allow players personalization and customization
E3 2015
E3 2015
Doom (2016 video game)