A bit of black humor in the sixth episode, when Colbert's Humvee is driving past a severed head lying in the road. He tells Person to avoid driving over it, and he does so...only to have the Humvee drive over the corpse the head was attached to. Colbert's exasperated "You can't fucking win here." takes the moment from morbid to darkly hilarious.
There's a lot of background commentary from the Marines, particularly radio traffic, that is hilarious. For example, in the sixth episode, there's a large crash in the background, followed by someone yelling that Manimal dropped a box of grenades, followed by someone else adding that "This is why we can't have nice things!"
In the very first episode, while Person is asking Fick for a sitrep not on their actual status but on whether reports of J. Lo being dead are true, you can hear a couple of marines in the background:
The discussion between Trombley and Person about joining the Marines. More so since Trombley is complaining that he didn't get to shoot.
Trombley: "Sergeant, I didn't get to shoot."
Person: "That fucking sucks, Trombley. Did your recruiting officer tell you you'd get to shoot people?"
Trombley: "Fucking A he did!"
Person: "See, Trombley asked about shooting people. I asked about pussy. Guy told me I'd get to go to Thailand and get all kinds of strange. What'd you ask about, Brad? Brad probably saw that T.V. commercial, the one where the knight fucks up the dragon then turns into the marine.
Hasser: "Whoo, dress blues with a sword!"
Person: "Fucking dress blues commercial, man, that got so many fucking guys. Now look at us! Trombley hasn't killed anybody, I am half a world away from good Thai pussy, and Colbert is out here rolling around fuckbutt Iraq, hunting for dragons in a MOPP suit that smells of four days of piss and ballsweat. (Reporter whispers "Wow") You should have rolled into battle with a sword, Brad. That would have fucking rocked."
Pretty much anytime the Marines start off-key singing.
Especially when Ray's singing 'Tainted Love' and he's trying to get Colbert to do the beats. Eventually, Colbert does so. It's hilarious.
Ray tends to do this a lot across Iraq, even when the company officers are trying to hold a meeting not two feet away.
Their personalized versions of "Boyz in the Hood" and "Loving You".
"You killed a lot of sand. The sand was... very evil." Along with the rest of that conversation, but that was a highlight.
To elaborate: The company settles down for the night in the field. Some Marines posted on watch observe an apparently moving column of lights off in the distance. Given that they have intel saying an Iraqi tank formation is not far away, this is an obviously worrying development, so an air strike gets called in. Unfortunately, the officer calling it in sent the wrong authorization codes and coordinates, so the attack aircraft get sent to another location and find nothing there. The flight leader macgyvers out what he thinks is the real coordinates while in the air, leads his planes there, and bombard that patch of ground—again, an empty field. Come morning, this string of errors becomes more and more obvious to everyone; Colbert, who had correctly judged in the night that the men on watch were merely hallucinating that the lights (from a distant village) were moving after staring intently at them for too long, makes fun of these events in conversation, culminating with the above quote.
Sgt. Major Sixta laying into a group of First Recon Marines who are catcalling at a female Marine sitting guard on a truck nearby:
"Belays that, Devil Dog! You's a'squealin' like a bunch of buttfucked Vassar bitches! Unfuck yourselves! We're gonna suffer the spectacle of WM with a bunch of horny Devil Dogs trailing her stern! Get y'selves squared up here! [turns to Manimal] Corporal. You're inappropriatin' your chemical filtration device by attempting fornication wit'it! Jesus, do I need to tell you to not desecrate your mask with perversions? [turns to marines watching the scene] Where the fuck are your helmets?!"
Ray getting out of the Humvee and, while bullets fly all around him:
Ray: Lilley, what the fuck! Would you please, BACK THE FUCK UP.
Ray talking about how he's going to make cookies with the things he's been hoarding, managing to sound like a little kid.
Captain America: "How's it feel now you filthy motherfuckers!? Goddamn dirty hajji motherfuckers trying to fuck with me? FUCK YOU! That's what you get when you try to ambush Marines, motherfucker, you get DEAD! Fucking bitch!"
Ray calls Brad a disowned individual because Brad was given in adoption. Colbert slaps him back sharply by pointing out he was raised by an upper-middle class and cultured Jewish family, as opposed to Ray's white-trashy background. Ray's retort is priceless.
Ray: "Technically speaking, Brad, but... didn't your biological parents disown you when they put you up for adoption?"
Brad: "Point, Ray. I was one of those unfortunates adopted by upper-middle class professionals and nurtured in an environment of learning, art, and a socio-religious culture, steeped in more than two thousand years of Talmudic tradition. Not everyone is lucky enough to have been raised in a Whiskey Tango trailer park by a bow-legged female whose sole qualification for motherhood is a womb that happened to catch the sperm of a passing truck driver."
Poke coming across Christenson and Q-Tip roasting the animal that Q-Tip caught:
Poke: What is it with you white boys? Leave you alone for ten minutes you go all Lord of the Flies an' shit.
Garza losing his helmet, and Espera's reaction to it:
Garza: Sergeant, I just lost my helmet! (while the Humvee they are in is racing across the desert)
Espera: What do you wanna do, hold a funeral?
Sgt. Major Sixta's reaction to it later.
"THAT KEVLAR WASN'T YOURS TO LOSE!!! THAT WAS THE PROPERTY OF THESE UNITED STATES MARINE CORPS! It belonged to every Marine! Because of your failure to secure that helmet, you've jeopardized EVERY MARINE SERVING TODAY! I was considering NJP'ing your ass!"
Early in the first episode, the Marines get letters from some elementary school children. After reading one particularly encouraging letter from a young girl...
Marine: Ooh, I like them braids. (while looking at her picture)
From the book:
Ray: Yeah. When I get back Iím gonna start a gay club. Iíll call it the Menís Room. There will be, like, a big urinal with a two-way mirror everyone pisses against. It will be, like, facing the bar, so when everyoneís drinking there will be, like, these big cocks pissing at them.
During some down time, while sitting with Wright, Colbert starts talking about heavy shit, then pauses. He then abruptly says "I'm going to be an airplane," jumps up, and zooms around the area with his arms outstretched (that part is shown in the series). He then sits down after about five minutes and goes back to what he was doing before, without a word of explanation.
Person at the start of episode 6:
Person: "Iraqi's don't really seem good at fighting, but they never really completely surrender either."
In Part 6, "Stay Frosty", after Colbert talks about how First Recon's role in the war is effectively over, there's some background radio chatter.
"Hitman Two-Three, this is Hitman Two-Two....um...over." "Manimal, you're not allowed to use the handset again, over."
After Reporter points out that if they are allowed out of their MOP suits, that means there were no WMD's, and thus the entire invasion was for wrong reasons.
Person: "I knew you were a fucking gay-ass liberal. You tried to pretend by invading Iraq with us but I knew!"