I have tried going to xur each week on my titan to obtain the only pair of boots I dont have, the Phoenix cradle. I also have tried farming the lost sectors and just plain playing the game to no avail. They dont seem to drop. I've also used my season pass exotics on my titan exclusively to try and get them but still nope. I dont think they're in the loot pool for some reason accidentally and I'm just making your team aware of this possibility cause I know I'm not the only one who has this issue. Also, bombadiers seems to always drop with low 56 stats nothing over 60 ever, and I've obtained 5 in my life ( extremely low drop too.) So hopefully that gets fixed as well or I get some answers lol.