Idk if this has already been posted, I didn't read every reply, but isn't hardcoe the same as FO3 and then survival mode, u just find food and water? (I know thats what survival mode is.) But you do get swarmed with enemies early in the game in FO3, because if you go straight to Rivet City, and do the quest with the Dr., there are Super Mutants all over the place and i was only level 5.
EDIT: Wow, hardcoe is a difficulty, my bad.
No. No it is not.
hardcoe Mode should be called survival mode. It adds requirements for drinking, eating, and sleeping. Stimpaks heal over time, and you must use a doctor's bag or visit a doctor to heal crippled limbs. Ammo has weight. That is all that it changes.
hardcoe Mode is an option that can be used with ANY difficulty level, so you can play hardcoe on Easy, or Normal, or Hard, or Very Hard - whatever you wish.