In `` Mass Effect 3 '' , '' Commander Hudson is in a battle to retake North America from the Reapers . second installment in series has One lines of dialogue . New players are brought up to speed through some introductory missions .
In `` Mass Effect 3 , '' Commander John Shepard is in a battle to retake Earth from the Reapers . Third installment in series has more than 40,000 lines of dialogue . New players are brought up to speed through some introductory missions .