We talk a lot about how traumatized Crosshair is, how much he has been through, what he's had to overcome, and how much our man needs ALL the TLC and hugs and comfort and therapy (and boy oh boy he does!)...
But Hunter strikes me as the kind of person who is equally traumatized and scarred for life (just in different ways) but keeps it buried deep because he's supposed to be the leader and he WILL stay strong, he is fully aware Wrecker spent months barely holding him back from careening off the edge of the cliff and so he's going to work even harder to hold himself together now because Wrecker shouldn't have borne that responsibility, he's going to be there to hug Omega when she sobs from the nightmares and comfort Crosshair when he wakes up in a cold sweat clutching at the hand that's no longer there and convince Wrecker to take a break when he starts to wheeze while walking up the path to the Archium or gets that far-off look in his eyes as he stares at the mangled breastplate hanging up in his room...
He's going to do all this, and he's going to stay acutely aware of all their struggles and will help them through all of it, and he might quietly admit to having a bad dream when Omega talks about it, but he's never, ever, EVER going to tell anyone that he quietly goes to his room to hide his panic attacks and how hard it is to let Omega out of his sight and how difficult it is for him to convince his brothers to go out and try some new hobbies because he is so afraid they're going to get hurt but he can't tell them that and how his throat still feels like it's closing up every time he looks at his siblings and notices the one who isn't there and never will be again...
And the thing is, Omega and Wrecker and Crosshair know how much Hunter is struggling, but they don't know exactly how to help him because he keeps saying he's fine, and he's going to keep saying it because he's the older brother and he's supposed to take care of them and he failed at it so many times and he's NOT going to fail now...
But they keep at it, Omega insists that they all have a "camp out" in the living room all together at least once a week (Hunter doesn't have nightmares then) and Wrecker makes Hunter come with him to try a bunch of new hobbies until Hunter's discovered six new interests and Crosshair who has finally forced himself to go to the memorial at the Archium now somehow manages to drag Hunter along with him every few days and they sit together and remember their brother (until said brother finally comes home, of course)...
And by the time Rex contacts Hunter to let him know the vault kids' families have been found and asks for help getting them all relocated to safety, Hunter watches his family gear up to go, and he realizes... not only are they okay, but he's okay, too.