Personally, I think the following is an example of bad ass genius:
"Punch it"
"Sir, permission to leave the station?''
"For what purpose Master Chief?"
"To give the Covenant back their bomb."
"Shipmaster, brute ships, staggard line, they out number us three to one,"
"Then it is an even fight."
"Radio for VTOL, Heavy lift gear, we're not leaving him here"
"Yeah, you're not"
"Chief wait! The Arbiter's with us, we've got enough to worry about without you two trying to kill each other!"
"Were it so easy."
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from H2 cortana: regret, regret, regret it just keeps repeating johnson: we regret coming to this earth, we regret attacking the marines, and we most definately regret that the corps just blew up our raggity a ss fleet! marines: ooh rah lol or begining of H2 when johnson comes to get cheif marine: so you ever going to tell me how you made it off that ship johnson: sorry guns thats classified marine: classified my a ss lol but pretty much anything johson ever says is amazing!