Hello there, Thank you for reaching out to us. We understand that you experienced a crash in Destiny 2 in Vault of Glass. We're sorry to hear of this, as we can imagine the impact this may have had. If you haven't yet tried doing so, you may wish to [url=https://help.bungie.net/hc/en-us/articles/360049199051-Clearing-the-Console-Cache]Clear the Console Cache[/url] or [url=https://help.steampowered.com/en/faqs/view/6AD7-820D-8BE5-E51F]Download Cache[/url] if on Steam. These steps often help to prevent issues such as that you experienced. If, however, you continue to experience the crashing you describe, then please clarify if this only happens when using the weapon mod you describe and share that mod's name. In addition, please consider recording a short video which demonstrates what you're experiencing. If you record such a video, you can upload it to a media-hosting site like Imgur or Youtube, and share a link to it here. We'll then investigate this further.