Hound: Got some bad news Cade, I'm out of ammo, out of ideas.
Joshua Joyce: Oh my god! How do you say 'get the fuck out of the way' in Chinese!?
Cade Yeager: Are we safer on our own, or are we safer with them?
Cade Yeager: Will we see you again?
Optimus Prime: Cade Yeager, I do not know. But when you look up to the stars, think of them as my soul.
Cade Yeager: These alien guns kick ass!
Optimus Prime: Legendary warriors - the powers that created us, now want us all extinguished. We must join forces or forever be their slaves. So today you stand with us; or you stand against me!
Lockdown: You see my face, your life is done!
Optimus Prime: After all we have done, humans are hunting us. But I fear we are all targets now.
Optimus Prime: This is not war... It's human extinction!
Optimus Prime: Only together can we survive; let me lead you.
Joshua Joyce: We can make you now. Don't you get it? We don't need you anymore.
Optimus Prime: Autobots, we're going to prove who we are and why we're here.
Crosshairs: You just wanna die for the guy, that's leadership or brainwashing or something.
Drift: No, that's Optimus Prime.
Joshua: I can't believe I'm putting my life in your hands!
Cade Yeager: You want the alien gun? Take it!
Joshua: No, I don't want the alien gun!
Chosen answer: The battle that lead the government to hunting all transformers was in Chicago, but the incident that took Optimus out of commission was not. He'd been on the run for however long, even changing his appearance to avoid detection, when he was ambushed. Wounded, he snuck into the theater to hide before transforming one last time into vehicle form at which point he basically passed out, lost consciousness, or whatever it is robots call it when they involuntarily shut down (stasis). His aggressive reaction upon waking is simply down to his instinctive warrior reflexes immediately kicking in. All humans are a potential threat to him now, so he reacted accordingly in an instant.
Phixius ★