I don't see why everybody says Duke was so tough in 3D. I watched a let's play of the game recently on normal and the player went from full health and armor to dead from 3 mid range shotgun blasts from a pig cop. The weapons also seemed underpowered and you really didn't get enough ammo to go on a rambo style rampage. Also the reason for regenerating health and limitted weapons is to do two things. For weapons it encourages thinking your loadout beyond, "do I have enough ammo." Now you have to consider what weapons will give you the best ability to handle changing situations in the future while also handling the one you have now. For regenerating, it's discourage the habit of spending time searching around the level looking for health kits before you get into the next fight. It also prevents you from ending up fighting the a billion hit point boss that has an unaviodable, but weak attack with one health. It's happened, not fun; not intense, just annoying.