Gears of War: Judgment

I heard this game was a prequal to the main trilogy and thought it was about the famous E-Day that they talked about throughout the other games, when I found out that it wasn't I got sad and after I beat the main story it felt like I had hardly done anything at all.

At least there was a mission after the main story called Aftermath where it plays in the middle of Gears of War 3 when Baird and Cole get a ship while Marcus and Dom go find for for a sub to get to an island.