system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Why are the Mandalorians the only group ever recorded to have used nuclear weapons?

Why haven't these devices been used by the Empire military, or in Rebellion sabotage missions?
gpt
Nuclear weapons are very old tech. There are much more efficient means of destruction such as thermal detonators. A single Class-A thermal detonator was sufficient to cause the collapse of Xizor's Palace, which was 102 stories.

Simply put, there are other weapons which give one more bang for their buck now.