While we understand people are fond of using the trigger to shoot in other VR Vive games, we’ve assigned the trackpad to lock-on/fire. (In classic Rez, you can use either the trackpad or trigger to lock-on/fire. In Area X, the trackpad is mapped to lock-on/fire, and the trigger is used to fly.) We like the musical feel of the current control. Please let us know what you think.