In the far off future of the year 2014, Bro Wars 2 is released:
a: You can spend $70 to get the Access package which lets you play the game as the developers "originally intended it", access to both SP and MP is limited.
b: You can spend $40 on the Micro-Transaction package which lets you play the bare-bones single player run through. Individual extra unlocks can be bought to upgrade.
b: You can spend $140 on the Total Package which lets you play all the content that has been created for the game.
More like Bro Wars 1.5...
Yep, that's the way things are heading.