Last week I played for the first time against a list with Nym, once against the scum version and another one against the rebel version. I lost one game and won the other. The game I won, I can say that was more fortune than strategy, but in that game Nym was eliminated in the first rounds by concentration of fire. In the game in which I lost I suffered with the bomblet generator and the high PS of Nym, and it was impossible even to seriously damage it (I also have to say that my list included a punisher! :-D).
This thread is not to complain, but to gather what strategies people use, especially those who play imperial, to eliminate Nym.
As an idea I think that an alpha strike made with ships that can hold the focus fire for a round could work. What is your opinion?