6:57 - Gar Saxon (to his super commandos, about the rebels): "Stay alert. They're around here somewhere." Wedge also gives this advice in Return of the Jedi, as the rebel ships enter the Death Star: "Stay alert; we could run out of space real fast" [1:58:00].
7:22 - Ezra (surrending to the super commandos): "Don't shoot!" C-3PO also says this to Jawas in A New Hope: "Don't shoot! Don't shoot!" [16:27].
14:25 - Gar Saxon (to Ezra): "Sabine never told you about her family?" One of Vader's comments to Luke in The Empire Strikes Back has a similar structure, albeit as a statement, not a question: "Obi-Wan never told you what happened to your father" [1:50:58].
16:00 - Gar Saxon (to his super commandoes): "I want those rebels alive!" This is also part of Vader's orders to the stormtroopers in A New Hope ("Bring me the passengers; I want them alive!" [6:08]) and to the bounty hunters in The Empire Strikes Back ("You are free to use any methods necessary, but I want them alive, no disintegrations" [1:06:14]).