Bethesda Softworks' E3 presentation is now underway on Twitch and YouTube, and their first new revelation is the announcement of DOOM Snapmap for the upcoming return to DOOM. They call this a way for players to easily create "intricate" maps on the fly with no previous experience, offering the ability to share maps for id's upcoming shooter sequel with the press of a single button. They also showed off DOOM single-player and multiplayer play, displaying several multiplayer modes and a visit to hell along the way. Here's the DOOM E3 2015 gameplay trailer.