Just some answers to some of the major questions from our Marketing community dude.
Auto Health
Yes, Deus Ex 3 will use auto-health regeneration. This is a departure from the original but the industry as a whole has grown up and changed quite a bit in the last eight years and the designers didn’t want people exploring levels just for health packs or having to reload to an old save game because they messed up a scenario and couldn’t advance. I know some people actually liked the exact scenario I just described but this is a decision the team made.
Cover System
The design has been updated to utilize a cover system should you choose to engage it. As the game is still 1st person, it’s only if you press a key when up against a wall that the view changes to a 3rd person perspective. As soon as you move away from the wall, the game returns to 1st person automatically.
So it's just an option if you want to play that way. If you like the good 'ol DX1 style, you don't have to engage the cover system if you don't want to, so you'll see even less of the contextual 3rd person elements. You can just as easily walk up to that same wall in 1st person and never see the 3rd person cover. It’s just an option if you want to see the way Adam looks with augmentations you’ve chosen throughout the game.
Stealth System
Stealth in DX3 is based off line-of-sight and sound propagation. You can hide everywhere you see fit as long as you’re hidden by an obstacle and you don’t produce too much noise. Think MGS1&2. In the first DX an enemy could be three feet in front of you but as long as you were in darkness he would not detect you. I mean, graphically in DX3, you still have light and shadows but the shadows are no longer used as the primary stealth element; it’s line-of-sight.
And in the end, because of how a Deus Ex game should work (and DX3 does), depending on your play style, everyone’s experience will be different. There are many ways to advance in the game or to solve a problem. To some, the above three aspects may sound like heresy, but Deus Ex is so much more than these three things.
To me, Deus Ex is about choices & consequences, non-linearity, customization, different ways to complete an objective, story, dialogue, character interaction, a Cyberpunk world, a massive conspiracy, etc. All aspects Deus Ex 3 has in spades.