I want to know a lot more about Kabr as well. Sadly the history we know about Kabr leaves a lot of unanswered questions, is kinda broken bits of info, and is open to interpretation with vague descriptions. I still believe his Ghost is in there to be found since the Vex took it. We may be seeing more from the VOG in the future and hopefully we get more answers on Kabr from his revived ghost.

This was about cataloging events, I couldn't go into detail on some things, and somethings in the timeline have little elaboration beyond "this happened". Kabr does many things inside VoG, but for all intents and purposes, the story ends when he goes MIA with his team; we get to "experience" the story of Kabr, vaguely, by playing the VoG raid.