Hello there,
Thank you for reaching out.
We understand Destiny 2 keeps crashing for you. We're sorry to hear of this, as we can imagine the concern this would cause. As you are encountering both error codes [url=https://help.bungie.net/hc/en-us/articles/360049196011-Error-Code-BEAGLE]Beagle [/url]and [url=https://help.bungie.net/hc/en-us/articles/4405096052244-Error-Code-MARMOT]Marmot[/url], you may wish to refer to their respective guides for information and troubleshooting which may be of help. While we realize you have performed some extensive troubleshooting, please note that these guides have suggestions for if these error codes persist beyond the recommended troubleshooting.