Monsters and doors

[jflkbob]

For some reason, doors in hexen format can be opened by monsters when they are set so they should only let the player use it.
Please check this out.

[Graf Zahl]

Add 'strictmonsteractivation' to the MAPINFO for your map(s).

Unfortunately this is a cause of some really bad hacking to account for lazy mappers that expected doors to work the same in Hexen map format as in Doom map format.