Unlike any other campaign levels of Call of Duty: Black Ops II, the player's loadout in this mission is obtained later (in the armory) instead of at the start. Hence, they can take weapons differing from what they chose in the select menu.
In the intro cutscene for the map, Menendez makes a reference to the poem Ulysses: "For those souls who have toiled, and wrought, and thought with me... Some work of noble note may yet be done.":
The first part quotes: "My mariners, Souls that have toil'd, and wrought, and thought with me..."
The second part quotes "Death closes all: but something ere the end, Some work of noble note, may yet be done."
The gift in Section's state room that is collected to complete a challenge is a piece of paper with the poem "Ulysses" on it. "Ulysses" is often referenced by Menendez throughout the campaign. The writing on the paper can be best seen with a sniper scope.
The mission's name references a Greek king who built a Trojan Horse to trick the Trojans and enter Troy; The connection being Menendez tricks David into capturing him so he could upload a virus into the ship's system. It also references the poem Menendez recites to his followers - Odysseus' name when translated into Latin is Ulysses.
When picking up the paper in Section's room, to the right from the door is a group of sticky notes. One of them reads "Zombies are coming", which is a reference to the Zombies mode.
When Section is knocked out by Menendez at the start, Section's character model does not cast a shadow, but Menendez does, which makes it seem like he is hitting the air.
If the player doesn't shoot Briggs, Salazar will knock him out, but Briggs will still act as if he was shot and Section will later tell a soldier to take him to the sick bay.
If both DeFalco and Farid are killed in previous missions, Salazar will kill Chloe and she falls to the left, but later her body will lie the same way when DeFalco kills her.
When the player goes inside Section's room, pictures of an unknown woman and several children can be seen on the wall.
If Salazar kills Karma, when the player takes control of Section again and looks at Karma's corpse, there is no bullet wound on the side of her head where she was shot by Salazar.
During Menendez's interrogation, the soundtrack from the OST of the game titled "Niño Precioso" can be heard in the background. This track also plays in "Time and Fate" when the player first controls Menendez.
If DeFalco is killed earlier in the game, a Mercenary will take his place and fill the same role.
If DeFalco is in this mission, the lines that he says will be subtitled. However, if the Mercenary is present instead of DeFalco, his lines will not be in the subtitles.
The mercenary replacing DeFalco has a randomly generated name, but his appearance will always be the same.
Strangely, the mercenary's name will be a random American one, and not one of Hispanic origin.
The briefing room seen during the Strike Force mission cutscenes can be found in this level.
However, if the Access Kit is equipped and one uses the first turret and destroys one of the televisions in the briefing room, when one checks it later as Section, all the televisions are intact.
During the opening cutscene, when Menendez gets out of the VTOL, "Chasing a Ghost", a track from the Black Ops II OST, can be heard.
Also, when the player gets to the flight deck, On Deck can be heard.
An interesting sequence of events may occur if this mission is completed and unlocked to be replayed, but the story rewind function is used on any level before Achilles' Veil, both Harper and Farid will be alive in this mission. Farid will kill DeFalco as normal, but then if Judgement Day is played, DeFalco will still be alive and be killed as well. Technically speaking, if DeFalco was not killed in the level Karma, and the story not progressed past Achilles Veil', DeFalco dies twice.
If both Farid and DeFalco are present and Karma is not, they will kill each other, and DeFalco's Five Seven can be picked up and it might have camouflage on it, even though it didn't have it before.
The same is true for Farid in the scenario where he shoots DeFalco in the head before being killed the same way by Salazar. The pistol cannot be obtained if the player already has an unmodified Five Seven
Interestingly, if DeFalco is present, the technician he took prisoner during Salazar's betrayal is nowhere to be seen when DeFalco approaches Chloe or Farid, the same occurs with the Mercenary, who vanishes along with the technician if he is present.
During the interrogation, Salazar punches Raul Menendez in the face, and Menendez's face starts swelling, but when Section sees Menendez on the cameras, there's no swelling.
When Menendez is holding Briggs hostage, he cocks his revolver, but when he goes to shoot Briggs, it's uncocked.
If Harper died during the previous mission, Briggs will instead fill his role.
When playing as Menendez, every American in the room is shown as friendly, except for Briggs (as Menendez is going to shoot him, it shows red).
After Harper kills Salazar (player-determined), the player can pick up Salazar's Five Seven.
In the cutscene, when Secretary Petraeus says "the last time we were at DEFCON 3 was nearly 25 years ago", he is talking about 9/11. This intro plays if the strike force missions are not completed.
When Menendez is inserting the Celerium worm into the ship's database, the first 30 seconds of "The Search for Josefina" can be heard playing in the background.
After providing sniper support for the SEALs, then entering the room to their left, the player will see several sailors capturing three Mercenaries. The player can kill the prisoners without a penalty or a change to the mission.
When holding Briggs in a hostage position, Menendez's Executioner will have a long barrel.
When you enter the hallway in the beginning of the level, a sailor, "SN Praiser" lies among corpses. His body is still counted as a living ally.
When Section initiates a capture order on Salazar, his line is not spoken in the same filter as the previous line and becomes barely audible.
If the player kills the welder in the CCTV room he will drop an M8A1 with an invisible magazine, and its ammo can only be replenished from the ammo box.
