The officer of the watch, as is military tradition, received all the blame. But it should be said that the commanding officer was ready to take all the blame...but the court eventually found the officer of the watch to be responsible. And that is correct. When you work/serve in the military, at least in Norway, the hierarchy of responsibility is very strict. Even the lowest ranking officer can end up being responsible for a billion dollar vessel / station / etc.
The names of these people are not made public, and it is fairly simple to write your resume in such a way that it will obfuscate your role. The only people that know, are those intimately familiar with the case (from the inside), or know someone that does.
When I worked in the military, albeit in a civilian role, one of my co-workers had been a sailor on this ship around the time this happened.