This is about the security guards with guns video, the original was removed, they have a download link to it in a later comment:

https://lemmygrad.ml/comment/2704441

This is the video of a tank at the rave:

https://x.com/TKMarx/status/1711879624223858850?s=20

This is a testimony of a zionist claiming they were organizing fighting against the militants:

https://www.billboard.com/music/music-news/israel-music-festival-attack-artist-manager-account-massacre-1235436829/

I think that last link helps dispel the idea that it was a wholesale massacre of innocents.