Today, a very short teaser trailer of Bethesda's video game DOOM was posted on their YouTube channel. According to the description the short video shows in game footage.
"Get the first in-game footage from DOOM . See the game unveiled at Bethesda's E3 Showcase -- Sunday, June 14th at 7 pm PT."
In June last year they also released a trailer for DOOM, then without in-game footage.
The game, previously known as Doom 4, is said to be in production since May 2008 by id Software, but because of all sorts of behind the scenes issues and troubles the development was basically scrapped in 2011. The development was started from scratch again after that and has been renamed to DOOM. This time the game is being developed by Bethesda Softworks, which is part of ZeniMax Media who bought id software back in 2009