

Omega is best done either right after the coup or right after Rannoch. This prevents Shepard and Liara from looking like idiots. Otherwise, after Rannoch, at the earliest. If you want Miranda to show up, you should do the DLC after Priority: Horizon.

When should I do the Mass Effect 3 Citadel DLC? Leviathan (definitely late game, right before or right after Thessia fits well).

