I don't like how boss fights amount to just shooting at them to win. A boss usually is defined by how you take it down just as much as how it looks. To be fair Xol was an actually unique enemy for a strike boss, and had his own weak points, attack patterns, and all that. That said Oryx in the raid took certain steps to kill. Penoptes is a more recent example that also took certain steps to kill. They need to do that more, and also I find the spectacle of this series is lacking heavily. We are always in a small arena like room as well. For example why don't we just get right to the boss fight at the beginning? You could beat them at any point through it though it is unlikely early on. So as you could guess taniks doesn't count but is close. That or how have we still not done any vehicle boss fights or anything? The mission design, bosses and encounters up to that, are just terribly formulaic and uninspired. Along with lacking any real variety to begin with. You just shoot your guns the whole way.