The Intruder Alert Seasonal Challenge in Destiny 2 is easy enough to understand but can be rather challenging to complete. For those players that can’t quite get it to work, we’re here to help guide you through the process of ensuring Ghost isn’t interrupted during the Battlegrounds. Let’s dive into what this looks like. Intruder Alert seasonal challenge The Intruder Alert Seasonal Challenge requires you defend Ghost, ensuring he never gets interrupted. For Week 4 of Season of the Chosen, there is a Seasonal Challenge called Intruder Alert. This challenge asks players to complete the following task: Don’t allow opponents to interrupt Ghost in Battlegrounds missions. Now, this is only really possible if Ghost is doing something and needs defending, which only takes place in the Oracle Battlegrounds on Nessus.