I love all the MP updates ....but I saw stories a couple of weeks before the Reckoning release suggesting that there were gonna be some new co-op modes and stuff that was supposed to incorporate single player save data into the story.
this was on gamespot Feb 1st
"The day of reckoning is nigh!" read the description. "The Reckoning Multiplayer Expansion brings six new never before seen co-op story missions to the game and new co-op gameplay modes. It provides four new maps to conquer and hazard variations of the Earth maps. It also enables reinforcement packs that offer new kits for the Salarians, Krogans, humans and Volus. In-game reinforcement packs now include three new weapons (Chakram Launcher, Blood Pack Punisher and Adas Anti-Synthetic Rifle).
All I saw were new characters and a few weapons...I saw no new "story missions" or new gameplay modes....... I didn't even realize reckoning had new maps.