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UAC Spokesman: All UAC employees are subject to regular Med-Checks to ensure their production capabilities are not degraded.

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UAC Spokesman: The UAC. The world is counting on us. How committed are you?

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Olivia Pierce: I believe in honesty, especially now, in what will be your final moments in this world. All the rumors, the human sacrifices, the Hell portal, the demons... it's all true. My sisters and brothers be thankful! You will be the first, you will have a seat along side them just as I will in the new world that they create for us... starting... now...!

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Samuel Hayden: I feel I should apologize for what's happened here... some of my employees took things too far. Olivia was the cause of all this and I believe... you... will have to deal with her in time. You may not agree with our research... but know this. We exploited Hell and its resources because it was in mankind's best interest to do so. What you now see in this facility is the cost of progress. Hmm... but none of that matters now.

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Samuel Hayden: Take it, it will give you strength, help you on your journey... if you can withstand the power surge.

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Samuel Hayden: That is pure Argent Energy you've taken into your system. It seems to agree with you. Hmm. I will unlock the remaining Argent cells in the facility for you. Vega, give him what he wants.

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Vega: Hello, I am Vega, the sentient intelligence assigned to Mars. After running diagnostics on the Praetor suit, it appears that I can activate optional challenges that, when completed, will assist in upgrading your arsenal at an accelerated pace. I have added a tracking component to your Dossier.

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UAC Spokesperson: God rested on the seventh day. But imagine how much further along we would be if he hadn't. The UAC is committed to excellence, that's why we implemented the seven day work week. Now you can achieve greatness alongside your coworkers everyday. Let's never stop achieving.

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Samuel Hayden: I'm willing to take full responsibility for the horrible events of the last 24 hours but you must understand: our interest in their world was purely for the betterment of mankind. [Doom Slayer looks down at a dead body] Everything has gotten out of hand now, yes, but it was worth the risk. [Doom Slayer cracks his knuckles] I assure you. [Doom Slayer smashes the control panel, Doom title screen appears].

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Olivia Pierce: He can not be allowed to leave this place... He would ruin everything.

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Olivia Pierce: We have to contain this.

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Unknown speaker: They are rage, brutal, without mercy. But you. You will be worse. Rip and tear, until it is done.

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Facility Voice: Demonic presence at unsafe levels. Lockdown in effect.

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Mathias Vogel: It's your finger that's pulling this trigger.

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Lara Croft: You messed with the wrong family.

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[After killing a Soldier.]
Sniper: That helmet's going to make a nice bowl for ya brains.

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Sniper: Everything above your neck is going to be a fine red mist.

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Sniper: You're all a bunch of no-hopers.

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Davis Okoye: Hey! Come and get me you ugly son of a bitch. (01:26:40)

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Dr. Kate Caldwell: I thought you were dead.
Davis Okoye: Well I think she missed all the vital organs, but uh... don't jinx it. (01:16:45)

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