Not sure if this has been brought up before or not, but when I was browsing through one of the Dreadnought map files to find soundsets for doors I had noticed something strange.
When creating a pair of doors which are to open similtaneously, you must set a 'team' value for the two door functions.
The team names for the doors in the map usually have names such as 'CB1' or some uninteresting name such as that....
In this level a few doors suggest that the Raven level makers were getting a little bit bored using the same boring team names for their doors.
here is a list of the team names that I found in the one map:
my eye goes to the side creamed cornucopia jellyfish sandwich favorite color man open sesame dijon mustard get the hell out of here