A fun, calustrophobic mission for mothership. I played with Mothership 1e and a mix of newer and experienced players and everyone enjoyed it.
Running it was easy with a well-laid out pamphlet that has the information that you need but with plenty of room for the warden to be creative in building an atmosphere. The infestation mechanic nicely raises the tension and keeps things feeling theatening as the players gradually realise what is happening. The monsters are scary, but don't tend to kill players instantly, which helped give the newer players time to come up with solutions.
A few maps handouts are available in the creator's discord, which helped the players understand the submarine and navigate the space.