Mass Effect 3’s ending was divisive, and that’s being charitable. If you happen to lead towards burning hatred for the conclusion to BioWare’s RPG game trilogy, this mod might be just what you’re looking for.
Project: Earth Overhaul is a top-to-bottom rework of Mass Effect 3’s final mission, using cut content and new features that range from bug fixes to music, events, and cut-scenes. According to the description on Nexus, it provides “a satisfying finale for one of the most popular franchises in gaming culture”, while also remaining “true to BioWare’s initial design, established lore and the game’s original script”.
Every cut-scene has been touched up, and you now have more choices based on your background. All the characters have new dialogue, some freshly recorded, others lifted from Mass Effect 2 and 3. Four new tracks have been added to the soundtrack, as well as lots of visual flare and background events through-out. In the latest, and apparently last, update, there’s now sections where you fight alongside the Geth, and other characters like Grunt and Kirrahe, making this last stand truly sprawling.
Original source: https://www.pcgamesn.com/mass-effect-3/mod-ending