Upon reading this I started thinking that this change would be good. Some people don't like comms being able to close a door, insta-killing the fleeing onos, but some people don't want this functionality removed because closing the door in front of that fleeing onos (to be killed by the pursuing marines) is a valid tactic and adds a great deal of interactivity to a map (and interactivity adds atmosphere). That is a whole arguement unto itself, but it stems from the door insta-killing people. The problem isn't in the comm activation of the doors and elevators, but in the damage these objects cause. A small amount is always okay as a way to say "stop heating up the neighbourhood" err... I mean "move it". But the problem is in structure blocking. Ns_nothing's grand elevators are fine example of this lame tactic. So in order to prevent this, mappers set the objects to cause damage and in order to kill a pile of DC's, this means a lot of damage must be dealt (hence players are insta-killed which isn't terribly cool).
Now my suggestion is to have structures hurt in a different manner, such that they take a higher ammount of damage than a player. Possibly making this a mapper defined value (which would be best IMO). Would this be possible?