The IDF revealed on Friday, what it described as intelligence showing a Hamas command center located under a the Shifa Hospital in Gaza City. In a briefing, Rear Admiral Daniel Hagari told members of the foreign press corps that there are areas in the hospitals that are used by Hamas to direct its military operations.
Not sure why you are downvoted for asking a legitimate question.
Personally I’ve never seen it, but it does provide a bit of background.