Grimes: Why aren't you shooting? Waddell: We're not being shot at yet! Grimes: How can you tell? Waddell: A hiss means it's close, a snap means—
[a bullet snaps right by them] Waddell: Now they're shooting at us! [fires off long burst from his M60]
Yurek, after getting separated from the rest of the squad, accidentally comes across Nelson and Twombley, who have also been separated. Twombley mistakes Yurek for a bad guy and shoots at him, forcing him to scramble for cover. He then realizes that it didn't sound like an AK...
Yurek: Rangers? Twombley: Who? Yurek: It's Yurek! You fucking assholes!
[Nelson and Twombley quickly communicate with each other] Twombley: Dude, we almost fucking killed you! Well, come to us! Yurek: Fuck you! Come to me!