Here is what is has changed from the Beta, which many people reviewed, to the final release.
http://blog.us.playstation.com/2010/01/mag-beta-vs-final-game/
First, let’s talk about the differences between the final game and the beta you tried out a few weeks ago – the most obvious of which is the mode and map count. Whereas before, the Beta version of MAG only offered six maps and two modes, the retail version has a full five modes with 15 maps to play. The final game also includes a handy offline training mode, unique armors, new cinematics, art galleries, trophies, and the always-popular Veteran Mode that lets you start all over again with a permanent XP bonus and the ability to switch your faction after hitting the level cap. Of course, graphical and audio improvements are in there too.
