The game review isn't for the beta, Sony held a 'review' press event over a huge LAN. Then at the end they had Zipper vs the reviewers in a 256 person match.
The whole thing was a joke though, it was too loud for headsets to work, and reviewing an online game with so much depth based on 4 games is a joke. It'll take alot of time just to learn the maps, the modes, for commanders / leaders to be established, to understand all the roles, find the best weapons and tactics etc.
Sony really shot themselves in the foot. The Now Gamer review is from this event... it's laughable to try write a full review based on 4 matches though.