New Game Design/Gameplay needed for dealing with Enemies in future games

[Googolplex]

I don't have anything against a "combat system" when it is similar to Penumbra Overture.
As long the game don't turn into a "fun competition" it is a nice feature. But I always suggested that the best horror is caused when the player lose his weapons. Then he felt more helpless than if he would never had weapons. So you should be able to kill enemies in some "very special" way for the first 30 % of the game. The other 70 % you should be helpless.

But don't understand me wrong. It should never be fun. Overture also was not fun. So when this combat system works as well as it does in Overture, then it would be very nice!