Haken finally getting his dance with Kanade before the last mission. You can only feel happy for the guy.
Abraham's bonding with the team. How a broken, dying man finally saw some light and found friends he could trust is very touching.
The team the night before their attack on a Hydra prison to save Axel. People who lived through hell for years enjoy a little moment together, probably for the last time.
Julius suggesting they film a message for their famillies before the mission on Oasis. The results are surprising. Though Gyver's message turns into humour quite fast.
Haken and Ally's date after Brimstone. For the first time in years Haken finally gets some time where nobody's trying to kill him, there's a girl who loves him dearly at his side, and he even gets to see Hamlet on stage.
Aerion's speech to Haken about his name (Freeman) and the meaning of freedom, to which Haken (and his writer) could only applaud.
Most of the epilogues, if they don't border on Tear Jerker. Special mention to Haken who finally has a family with Aly, and got his first book published, Rise.
Amazingly, Earl's got some, even if fairly rare. In the Hell he showed he indeed cared for people close to him, as he wasn't only a killing machine. He saved Lara on Congo even though he could have easily killed Largo, against which he had a serious grudge. And later, after the Battle of Homeworld, Earl smiled, for once in his life he felt free, along with his Hellknights.
Rodrig, on ambassadorduty, going to meet Autumn at her home on a remote planet and sharing a beer together under a tree. The fact that a massive and bloodthirsty cyborg dinosaur cared enough for a small human woman who grew up in a brothel fought together a few times and that 6 years later he still cared about her is truly heartwarming.
Tusco Keyes, after decades lost in time, reappears somewhere, sometimes, and finally meets his grandkids, without having known his own son, decided to redeem himself by looking after them.
Aerion sharing his last drink with Abraham, as he told him they would, by pouring it on his tomb.
Also, Aerion finally having his dream, becoming captain of a pirate ship and going on adventures.
Gyver willing to laugh a little about Krystal and Clyde's weird relationship, and Clyde awkward social behavior, only to be shot down by an unexpected heartful answer from Krystal: “Sometimes, I just want him... here, beside me.” That's when you know Krystal stopped to try to be the dangerous killer and actually consider a better life for herself...
Julius meeting back his sister on Karsol some times after the Reclaimer War, years after he exiled himself.