Dunno is this a bug or what. Happened on my own WADs.
Enemies just walked off the cliff.
There was a pile of about 6 enemies running over them selves

Bug no2.
Dunno is this a bug either

Game won't save my settings.
I customize my key settings, sound- and video settings,
restart the game and all settings are back to defaults again :I
I have checked the .CFG files that they are not ReadOnly files.
Bug no3.
And the Chainsaw/Fist "bug" still remains ^^
If enemy is located in another sector than player and player fists / chainsaws at it, when hitting, screen won't center at enemy :I