I thought the majority of those killed Oct 7th were in the military, followed by those attending a drug fest in the desert...what is the source for your information?
No, according to figures from May the large majority of killed in the terrorist attack were civilians.
https://www.barrons.com/news/new-tally-puts-oct-7-attack-death-toll-in-israel-at-1-189-3e038de6
On the site below you can see where and who and sometimes how.
The numbers are widely available on X, Israeli media etc. About 450 soldiers and police killed October 7th, 750 civilians massacred. In thhe week of fighting and cleanup following about 1500 Hamas and other terrorists killed, plus maybe 500 Gaza enemy “civilians”.