Otherwise, you won’t be able to choose the dialogue necessary to keep him loyal to you and can’t increase his loyalty ever again. Fair warning though: Your Paragon score will need to be almost entirely maxed out for this to work. You’ll then need to convince him with dialogue near the end of the mission to remain loyal to you.
If you’re a hardcore Paragon player though, then you’ll lose his Loyalty by taking pretty much any action that interferes with his extreme methods. If you go the Renegade route and don’t interfere with these actions – and even help him carry them out – he’ll remain loyal no problem. He’ll carry out a number of Renegade actions during this mission, including setting a facility on fire while there are innocents inside to flush out his partner. The real challenge comes when you undergo his loyalty mission, titled “The Price of Revenge.” In it, you’re required to help Zaeed get revenge against his former partner and current leader of the Blue Suns.
