Hello there, Thank you for reaching out. We understand you encountered error code Bat when invading. We're sorry to hear of this, as we can imagine the impact this may have had. Bat is a general networking error. If you haven't already done so, then you may wish to see whether [url=https://help.bungie.net/hc/en-us/articles/360049496531-Network-Troubleshooting-Guide]Network Troubleshooting[/url] helps to prevent it from recurring.