...because, for me, in this game there is too much running around going, "okay what in the @#$% am I supposed to do now?" and "Where is the little arbitrarily-placed secret opening in some wall somewhere in the map which the switch I just pressed opened? Great, now I will probably spend 5 excruciating minutes searching for the thing. meanwhile I could be playing Quake." It is too frustrating for me because these elements (switches, keys) necessary to keep the momentum in the game going seem to me to be arbitrarily located around the levels, whereas in Quake there is a "rhyme and reason" to their placement. One time as I was playing this they hid a switch behind some secret armor inside a wall, but I got the armour and missed seeing the switch because it blended in with the background color and pattern. when I finally went back and noticed it I was fuming. This game is no fun for me to play at all, indeed, quite the opposite, sir.