MEHEM is a reinterpretation of the endings of Mass Effect 3, which allows Commander Shepard to survive the final mission, among many other changes. It features custom videos and slides, re-engineered gameflow, original as well as re-arranged voice acting, new music, etc.
This mod scores 10/10 with me. Now understand, I am not one to hand out high ratings on the fly. But MEHEM truly deserves it. Not only does it put a happier spin on the ME3 ending, but it eliminates almost all plot holes created by the original and EC endings.
Franchise saving mod. Period.