I both loved and hated the hardcoe mode in New Vegas. I used it on most of my files, but I hated the eat, sleep, and drink mechanics, as while novel at first just because a chore without adding any challenge or fun to the game. What I did love and why I used it was mainly for the stimpaks healing over time instead of instantly, only doctor bags and actual doctors able to heal injured limbs, compainions able to die and having everything have weight, such as ammo. So if they do decide to add a hardcoe/Realism mode, I'd like each function to be toggleable at the start of the game when it is chosen. It may seem a little hypocritical to be able to turn off what you don't like in a hardcoe mode, but it would give us more options and add to the fun of the game. What do you think?
P.S.- Also if they are going to have an Achievement/Trophy for this, just have it say you need at least half of the options on to get the cheevo.