"We lost Checkman in the atmosphere, and we almost lost you too." - To O'Brien, who was freed from his sinking SOEIV by Cal-141.
"That's twice! Twice he had to save you dumbass already. At least you should have said 'Thank you'!" - To O'Brien, who was saved from Cal-141 twice during the mission, once from sinking into the forementioned swamp and other from a BruteChieftain.
"Shut up!" - Annoyed, to Berger, who shows his disrespects to Cal-141's death.
"Mike-Foxtrot. Is. Foxtrotted!" -After an enemy is killed.
"BAM!! Right in his sense of smug satisfaction!" - When getting a headshot or power weapon kill.
"That all you got?!"
"Alright!" - After a kill.
"GOT 'IM!!" - After a kill.
"I hope you bought return tickets, because otherwise you're goin' home in a cosmic ambulance!"
"Dear Diary, today, I taught some aliens about the relative foolishness of messin' with ODSTs!" - Firefly reference.
"Ooh-rah!" - After a kill or a stunt.
"You think you can just barge in here and bend us over these- Well that ain't gonna happen! They told me to hurt ya, but they weren't real specific as to the how! OK?!" - This may be a Firefly reference.
"I'm gonna make sure that when we win, everyone's gonna know what a beating we gave you!"
"I will rip off your arms and play bongos on your head." - A rare quote, when engaging a grunt.
"You guys ever seen Full Metal Jacket?" or "Hey scumbag! You seen Full Metal Jacket?"
"Headshot!" - When getting a headshot.
"Boom, headshot!" - When getting a headshot.
"Enjoy that extra nose hole." - When getting a headshot.
"Bim-bam in the brainpan." - This may be a reference to Firefly.
"Go arou- oh wait, you're dead." - When splattering an enemy.
"(Oh) Sorry, didn't see you there." - When splattering or run over an enemy.
"(oh) Sorry, didn't see you there heh. Give me cover, i'll squash them all" - When run over an enemy.