Is that the battle of Twilight gap, If so do you think they should have snipped in a glance of Saint-14?
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It's definitely the Battle of the Six Fronts. The Titan standing to the right (our left) of Zavala and Shaxx during the cinematic is wearing the Mark of the Six Fronts. Add that to the fact that the Battle of the Twilight Gap was fought on the outskirts of the city and it becomes pretty obvious its the BotSF.