"Second to last, right next to mine." -When showing Dare to her pod.
"Ms. Naval intelligence, our new boss. So check your mouths, find your chairs... [forces a Sniper rifle into Romeo's hands] and get set for a combat drop!" - Buck to Romeo when Romeo asked for her name.
"Don't look at me Rookie, cover the Captain!" -Buck to Rookie if he stares at him for a few moments.
"That look may work with the chicks, but not with me." -Buck to Rookie if he stares at him for a few moments.
"The last person who looked at me like that was the Captain and I asked her to marry me, so... you know." -Buck to Rookie if he stares at him for a few moments.
"I understand that in the Military we aren't supposed to ask, but I think I don't have to with you." -Buck to Rookie if he continues to stare at him (reference to the US Military's former "don't ask, don't tell" policy on relationships).
"Look, I'm not saying anything has to happen, but maybe later we just hold each other in our underwear or something, but now we have a job to do!" -Buck to either the Rookie or Romeo if he stares at him.
"Don't let that damn turret fire one more round!"
"This is Sparta!" -IWHBYD Skull at various points in Campaign and Firefight, a reference to both 300 and the SPARTAN-II program.
"Don't make me do something manly and impulsive." -IWHBYD Skull. This is a reference to Nathan Fillion's character Malcolm Reynolds from Firefly who insists that "Barging onto a companion's shuttle is both manly and impulsive".
"This is your 8 A.M. wake up call!"
"You know, with that helmet on... I can't tell... if you're staring at me... or not." -When stared at. IWHBYD possibly required.
"Go through 'em like a one stoplight town." -After all enemies in the area are dead.
"Thank you for the shiny, pretty gun." -If the player gives Buck a more powerful and bigger weapon
"You do know this is a better gun?" -If the player gives Buck a more powerful weapon. IWHBYD required.
"You do realise that this is a better gun?" -If the player gives Buck a more powerful weapon.
"Whoop-dee-doo!" -When the vehicle Buck is in is launched by an explosive. IWHBYD possibly required
"That was 800 yards with a bent scope!" -IWHBYD Skull required. When you no scope a headshot in NMPD HQ. Firefly reference.
"Hey, watch it. New vehicles don't just fall out of the sky." -IWHBYD skull possibly required. When you repeatedly roll your Warthog on Coastal Highway. Possible reference to Invasion of Halo: Reach.
"You take the turret. I haven't been able to hit anything all day." -If you replace Buck in the Warthog turret on Coastal Highway.
"You take the turret. You're better at it anyway." -If you hop in the Warthog turret on Coastal Highway.
"You know, they are more fun to fight than Elites" -referring to Brutes on NMPD HQ.
"See you in hell, Covie!" - Said when throwing a grenade. (Sometimes he'll say "Keep the place warm for me!" with it, IWHBYD possibly required)
"I got lots of these!" - seems to be rare, when throwing a grenade.
"Say my name!" - seems to be very rarely said, when throwing a grenade. A reference to the Cruiser Say My Name
"What's my name?!" - IWBYD skull possibly required, when throwing a grenade.
"Take it." - Throwing a grenade
"Take it, Jackhole." - Throwing a grenade, IWBYD possibly required
"I'm right on target." - throwing a grenade.
"I'm more poised to shootin'." - throwing a grenade.
"Oh, you still up? SIT DOWN!" - When meleeing - Machinima video maker 'ONLYuseMEblade' has a tendency to say 'Sit DOWN!' when he gets notable kills.
"I aim to misbehave." - When meleeing (Serenity reference).
"Say hi to your Mother for me." - When meleeing
"Ooh, the kitty got wet.." - When meleeing, IWBYD possibly required. A reference to a quote from the protagonist of Uncharted, Nathan Drake.
"Bam said the lay-day." - When meleeing, IWBYD possibly required.
"Boop." - When meleeing, IWBYD possibly required.
"Cover me please, I am reloading". - When reloading.
"Changing mag! If anyone's got a spare, I wouldn't say no." - When reloading.
"Violence is definitely ensuing." (Serenity reference)
"Yeah, eat it!"
"Ha ha ha ha ha! Oh, I'm gettin' good." -Possibly said when he gets a headshot
"Yeah, that's the way!"
"That's how we do it!"
"That one's for you!"
"Like that, ya bastard?!"
"Ha ha ha, got plenty more!"
"I'm not gonna lie, I'm gonna make it hurt." -Either taking damage or recharging his shields and health in a Drop Shield
"Oh you want a piece of me?!" -Taking damage
"....Owww, my back.." -When hit by wreckage, but still alive. He says "my back" rather quickly..
"I am green and very, very mean!" - When picking up a Fuel Rod cannon (Reference to a similar quote from the opening cutscene of ODST)
"Bam, said the lady!" - (Also used in ODST; A phrase of general exclamation that Buck's voice actor, Nathan Fillion, is trying to promote. It's also a reference to the Castle series, which Nathan Fillion is an actor in.)
"It looks like I'm taking a break, really I'm just reloading."