ME3 requires you to do a personality change if you ever decide to not stick with one or the other. I miss the ME1/2 days when you could be neutral and it just felt like “fuck it, let’s get the mission going” because realistically sometimes you don’t need to go into a tirade about how fucked the system is or how you don’t care how fucked the system is.

Regardless, ME3 Renegade is just full on psychopath sometimes because you have to have the opposite of Paragon and that means occasionally just completely fucking losing it and watching Samara kill herself and then shoot her daughter anyways thus invalidating her sacrifice while simultaneously showing that Shepard recognizes killing Falere would incite Samara and doesn’t want to fight an incredibly powerful biotic so he just allows her commit unalive because he knows she will do it cause her code has no grey areas.

It’s absolutely brutal in the most cunning of ways, Shepard takes the easy road and just let’s her remove herself as an obstacle for the equation. Falere is dead because she’s a potential banshee and Renegade Shepard is willing to kill her simply because she may eventually become one, but they can’t tell Samara that so they just play along and watch as she blows her brains out.

ME1 Renegade: Smart-Ass

ME2 Renegade: Bad-Ass

ME3 Renegade: Ass