Submitted by @weissroseschnee
If I may, a few conversations with Cayde-6 (the first one is just a cleaned up version of my Hunter Headcanon from earlier, the others came afterwards because I couldn't stop thinking about it): "Hunters are both the most reckless and most cautious of the soldiers born from the Traveler's Light. There is no shortage of tales to be told of the "madness" of Hunters: of the Hunter who charged Leroy Jenkins style into a Hive nest (waking everything inside), leaving their team to simply sigh and start shooting; of the Hunter who ran towards the line of Fallen Walkers with naught but their Golden Gun and a few rockets; and of the Hunters who somehow manage to trip head-long into danger time and time again.
But for all that you must remember that Hunters are- first and formost- the scouts of the Tower and the City. It is the Hunters (not the Titans on their Wall, or the Warlocks in their Mind) who travel to the unexplored edges of the map, staying out for days-weeks-months without seeing another Guardian before they return with their findings. It is the Hunters who are often the first to encounter and face any new threat to the City (and there's a reason why Ikora's Hidden are all Hunters- in name if not in practice).
Now, I can see some of you struggling to connect the necessary skills required to survive in the wilds to the stories you've heard or seen about how Hunters act in a fireteam, so allow me to ask a question: have any of you seen how an old Hunter acts around a new fireteam? Because, let me tell you, they are a completely different kind of soldier. See, a Hunter with a new fireteam acts in a very similar manner to a Hunter out in the wilds. They're cautious, slow, more likely to stay in the back than to rush the front. They observe not only their enemies, but their allies as well: getting a feel for not only the weapons and tactics they use, but their strengths and weaknesses, where they struggle and where they rise to the occasion. And if worst comes to worst, and the rest of the team goes down, a Hunter knows they can survive alone for as long as it takes for their Ghosts to rez them.
But once a Hunter knows- really /knows/- their new team, once they *trust* them, you can be certain that they'll go right back to acting like the Hunters in those stories, safe in the knowledge that their team will be behind them." -Cayde-6 to a group of Titans and Warlocks on some Hunter misconceptions
"There's a reason the civies have conflated Titans with the Wall, and it's not just because of the work of people like Commander Zavala, either. To them, the humans down in the City who haven't seen what we have, Titans must look like walking tanks, all heavy field-plate and rippling muscle and unrelenting power. To the people who haven't seen a Titan get thrown across a battlefield by a group of Knights, or be lifted by their throat by a Kell, Titans must look nigh-on invincible. But /we/ know better. We know that Titans- while maybe a bit more durable than your average Hunter or Warlock- can be killed just like the rest of us, so it's our job to make sure that doesn't happen.
Titans might be the Wall, but we're the knife that keeps that Wall /protected/. As long as you remember that, when you're in your Fireteams, it'll be all the more likely that you'll all come home." -Cayde-6 to new Hunters, on the dynamics between Titans and Hunters in the field
"I don't actually know much about what the Warlocks do to train. Why? Well, it \might/ be because the last time I tried to learn about them a large portion of the Tower exploded and while *it was absolutely not my* fault Ikora and Zavala seem to /think/ it was so I'm no longer allowed to ask. What I do know, however, is that as much as they might claim otherwise, Warlocks should be defended as much as possible. Because while most of you will become experts in the realm of moving quickly (and those that don't will learn to avoid situations where speed is key), and Titans are great at soaking up damage and dishing out more, most Warlocks don't have a good edge in the daily grind.
That is, of course, until they feel the Light ready to burst out of them from the seams, and bust it does. See, the real edge a Warlock brings to the team (aside from usually knowing more about the history of the place your in and generally spending more time reading the writting on the wall instead of acting on it) is their ability to just... clear out a whole damn room in seconds. Sure, Strikers can do that too with a few Arc-powered-punches, and Nightstalkers can incapacitate a room with a single arrow, but those are very specific cases. Warlocks, on the other hand, seem to have the big finish on lock. Think of them like glass canons: once they're charged up their power is overwhelming, but until then they're just as vulnerable as any of you, and they can't avoid the danger as easily, so you need to work with your Titans to keep the pressure off of them until they're ready to end the encounter. Got it?" -Cayde-6, speaking to new Hunters about the strength of Warlocks
~wordy but an accurate description of how a hunter would be trained to assist their team~