- The flashback to Nate's childhood and Sully turning on Marlowe's men to save a kid's life.
- Chloe's reaction when Charlie's hallucinating due to being drugged, and trying to kill Nate. A far cry from how selfish she was in the second game, she constantly tries to help him snap out of it. It's likely that if she wasn't there, Sully would have shot Charlie point blank.
- The fact Sully was willing to shoot Cutter in the head just to save Nate. He even distrusts him for a while afterwards, until he helps him after Cutter breaks his leg.
- At the closing of the second act, Nate staggers back to Elena, utterly exhausted from being held hostage and trying to find Sully. Nate's about to turn around and head back out, but Elena makes him lie down and rest, with his head in her lap, and even strokes his hair. Made even more adorable when Nate takes her hand, and apologises to her.
- Also doubles as a Moment of Awesome for Nate. Sure, he's been beaten within an inch of his life, he's tired, he's hurt, he damn near drowned, and he clearly can barely even stand up. But Sully is in trouble. That's the only thing that matters to him.
- And a Moment of Awesome for Elena too; she's all ready to go after Sully herself until Nate shows up at the last minute.
- The fact that losing Sully is clearly what Nate fears the most during Drake's Deception.
- The end of Drake's Deception with Sully's fatherly speech to Nate, and Nate finally wearing his wedding ring again. Made all the cuter when Elena mentions she's sorry that Nate lost Drake's ring, he just responds that he replaced it with something better, and shows her his wedding band. Aww...
- In the Atlantis of the Sands Sully and Nate catch a glimpse of a beautiful solar eclipse, and the way they are in awe of how spectacular a sight it is says so much. For the first time in a long time they are able to enjoy the beauty of nature and the wonder of adventure, a quiet moment with no complications and only joy. Also the pride that is evident in Sully's tone and expression is heart warming, this is a moment between him and Nate where they can stand as equal adventurers, almost like he's looking pridefully at his own son at the height of his career. It's fortunate that the scene of Sully being struck down in such a powerful emotional moment is just a hallucination. In light of that it's also heartwarming to think that Drake's hallucination, his inner desires, reflect his desire to have such a touching moment with Sully.
- A somewhat dark example, but at the end of the game when Marlowe is trapped in a pit of quicksand, Talbot desperately attempts to reach her himself and then immediately forgets all of his animosity towards Drake and begs him to Save the Villain, proving that for all his evilness, he really does care about Marlowe.
- In Drake's journal, nestled between sketches and notes about artifacts is a detailed sketch of Elena. Awww.
Heartwarming / Uncharted 3: Drake's Deception