Does anyone have any idea exactly what the new mode is? Is it like a new story or something?

Ah I'm not so sure. There are lots of different kinds of missions in this mode. Here's a video explaining MPO+ in English if you haven't seeen it already.

http://youtube.com/watch?v=xJk7KvXfI6s

??? :wacko:
continuously have to complete multiple tasks...

Infinity Mission is the new type of game that replaces Single Player on MPO+. The aim of the game is usually to get to the X on the map, but sometimes you have to do things like knock out all the soldiers in the level or find a specific item.

Basically it is like VR Missions.