NT Default has a bunch of serious issues that I noticed quite early while playing AI.
While Baystation, the server that NT Default originates from, has no law priority, our server... well, quite obviously does. NT Default works fine on Baystation, but on a server where law priority is a thing, it has severe issues.
For example, protecting the station's integrity comes before everything else, including serving or protecting the crew. That means that if the crew damages the station, it's implied that the AI can use any means necessary to stop them - I'm not sure how far would the AI go in trying to resolve a law conflict like that.
Next, serving the crew comes before protecting, which means that the AI might believe it is allowed to kill on order - as long as it serves the crew or protects the station integrity. You know, the terrifying "a robot can kill a human if it serves humanity" thing from the Asimov books, except with "an AI can kill a crewmember if it serves the crew"? Having a clueless AI player exercise this kind of thinking, while believing they're following their laws can turn ugly.
Honestly, I'm not even sure how much these are intended - since all I've been told while mentioning these issues upon ahelping is "follow the spirit"... Which honestly doesn't much tell me how am I supposed to act as an AI under this. My best judgment tells me these were not meant to work this way, but then why have a lawset that conditions the AI to do things it really shouldn't?
When a plain interpretation can turn this bad, I'm starting to doubt the lawset itself. Especially with the problems regarding the first law, I think having AI follow this really can't end well. So, I recommend it's either removed (Crewsimov works just fine to serve an almost identical purpose), or at least has its order rearranged, depending on the priority it's really supposed to have.