User blog comment:JordanaBrewsterFAN/Mass Effect 3 4th DLC./@comment-1786741-20130122002039/@comment-4967682-20130122002632

It did offer several new enemies, two new companions, two new powers, and a longer campaign. That was good. Unlike the sack of crap known as Leviathan...

I still think that no single player campaign compares, content-wise, to Retaliation. Seven new enemies, several new mechanics (possession, hazard maps, et cetera), three new weapons, and a few other things. Putting the Collectors into a future DLC seems inevitable, but I also hope they add new mechanics and bosses as well as an epic final story involving Harby and squadmate interaction.