* At the end of the [[http://www.gamespot.com/halo-4/videos/halo-4-mantis-trailer-6397490/?tag=whatshot;4 Mantis introductory video]], it turns out you can still [[BeatingADeadPlayer tea-bag]] your opponents in a MiniMecha.
** The hologram armor ability can do it as well.
* The ending of "Shutdown" gives us a great example of the Chief as a ComicallySerious foil to Cortana.
---> '''Chief''': Track those Liches. We can go across them to get to the Didact's ship.
---> '''Cortana''': Wait... ACROSS Them?!?
---> '''Chief''': [[BluntYes Yes]].
* During ''Composer'', you can find some Covenant trying to enter the station through the airlocks. To proceed, you can either give them enough time to figure out how to open the hatches and fight them, or send them hurtling off into space.
* While otherwise an extremely tense and heartwrenching scene, Del Rio's actions [[spoiler: while ordering for Cortana to be confiscated are quite funny as well. Not only does he resort to petulantly screaming like a child, he also orders security to arrest the Chief, despite him arguably being the most dangerous man alive. Nobody pays Del Rio any real attention after that.]]
* The ''Roses vs Violets'' achievement requires finding one WebAnimation/RedVsBlue easter egg. One is found in each episode.
** In Episode 1, [[CloudCuckooLander Caboose]] fills in for a UNSC radioman.
** In Episode 2, audio logs from a doomed science expedition get replaced by Caboose, Church, Simmons, and Grif. HilarityEnsues, especially when you take Palmer's responses into consideration:
-->'''Caboose:''' WhatDoesThisButtonDo
-->'''Church:''' Caboose, don't touch anything.
-->'''Caboose:''' But I'm great at buttons. Hey look at that explosion!
-->'''Palmer:''' [[{{Understatement}} Well that's no good]].
-->'''Church:''' Oh great! You broke it!
-->'''Caboose:''' [[NeverMyFault Yeah, no, the fire broke it]]. Oh, see. [[MajorInjuryUnderReaction Great, now I'm on fire, too now]]. [[SarcasmMode Awesome]].
-->'''Palmer:''' [[StraightMan What the hell happened down there]]?
-->'''Grif:''' Hey Simmons, what do you think this machine does?
-->'''Simmons:''' How would I know. It's a forty-foot seamless monolith with one massive holographic button. It could be anything from a giant microwave oven to a weapon with enough power to-
-->'''Caboose:''' ''(in the distance)'' I'm on fire!
-->'''Simmons:''' Hey. Is that Caboose? ''(Caboose yelling indistinctly)''
-->'''Grif:''' Probably. He's on fire.
-->'''Caboose:''' ''(in the distance)'' Oh god! It's like the armor, it does nothing! Ahh!
** In Episode 3, Grif and Simmons pilot the Pelicans that deliver Mantises to the player(s), exchanging their characteristic dry commentary on military combat.
** In Episode 4, Vic is back and apparently got Palmer's number after some karaoke.
** In Episode 5, Grif and Sarge deliver you some sports equipment. This one's notable because it actually changes the way the game is played. Have fun running up close to Hunters and Wraiths with Gravity Hammers.
** In Episode 6, Sarge and Grif prank call the Infinity.
---> '''Grif:''' Baba booey! Baba booey!
** In Episode 7, Simmons is trying to fix the Infinity's engines.
---> '''Simmons:''' Oh, great! More people with guns. I'm sure THAT will fix the engine.
** In Episode 8, Caboose is called to deliver supplies.
--->'''Caboose:''' Six crates of elbow grease and headlight fluid inbound now.
** In Episode 9, Church argues with an Elite.
** In Episode 10, Agent Georgia finds jetpacks - it doesn't end well for him.
* In the intro video for Episode Two, a Forerunner artifact shuts down ''Infinity's'' engines and sends it falling towards Requiem. Palmer solves the problem with a power-armor assisted kick to the artifact, reactivating the engines. She later comments that further attempts at "physical persuasion" haven't had any additional effect.
* In Episode 4, Roland is allowed to give commands to Crimson team. [[BlatantLies He doesn't let it get to his head.]]
-->'''Roland:''' There you are, Crimson, get up there. I command it! Haha! Okay, now I'm bored again, bye.
* In Episode 5, With Palmer gone Miller is left to lead you through the missions and Roland decides to take the oppurtunity and mock him and you whenever he can.
* Chief's Character Of The Year VGA Acceptance Speech. Cortana shows up and hypes up the speech, saying he's been practising "All week." Pan over to Chief, who shuffles around nervously with the statue, and then...
-->'''Chief:''' Thanks.
** The nomination video was funny as well. Cortana mentions how great an honor it is, while the Chief, leaning back in a chair, plays it down, suggesting all he needs is the respect of his fellow soldiers. Cortana then mentions Creator/SamuelLJackson is hosting, which causes Chief to fall out of his chair and say he needs to find a tux.
*** Could also be considered a CallBack to Halo 2.
* In Episode 8, after Majestic Team kills an Elite they start playing around with with its gear. [=DeMarco=] gets his energy sword. Thorne plays with his active camo. Madsen gets... a map of Requiem. He doesn't sound too pleased about it.
* [[https://www.youtube.com/watch?v=4wC-4iwqtXU This video]] recreates the scene where the Chief and Cortana try to to convince Del Rio of the Diadact's threat...only instead of Cortana its Samuel L. Jackson. And the Diadact stole the Master Chief's Warthog. As it turns out, not even Del Rio is dumb enough to piss off Mr. Samuel L Jackson.
-->'''Samuel L. Jackson:''' Oh wow wow oh ho. ''Malfunctioning!'' I respect your position, but if you don’t head back to Carinae Station right [[SoundEffectBleep bleep]]ing now, I'm going to AI my boot up your ass.
-->''(Infinity slows down and reverses-with appropriate sound effects)''
-->'''Samuel L. Jackson:''' Aha. That’s what I thought.