- Riptide allows the other characters to show up at safe areas in single player. The normally calm and stoic Xian has an Idle Animation of fooling around with a knife, even accidentally cutting herself on it, then keep playing with it.
- While the other survivors are not afraid to loot a location John is rather...eloquent about it.
C'mon, daddy needs some new shit.
- Dr. Kessler taking a blood sample from the player. Especially from Sam B, who is quick to object despite the fact he had no problem clearing out a large room full of grenadiers for the good doctor mere moments beforehand.
Dr. Kessler: "I'll need a blood sample from you."
Sam B: "No doc, that wasn't part of the deal. Now you hand over that motherfuckin' map."
Dr. Kessler: "It is for your own good."
Dr. Kessler: "There now, that wasn't so bad. If I had a little sweet I would give you one."
- If you play as Morgan his reply is thus:
Oh Jesus Christ on a pony…