DICE General Manager Karl Magnus Troedsson posted with the news, saying "the fact that Battlefield 3 is clearly our biggest game launch ever by a magnitude of 6 makes it doubly important to test everything."
He also mentions that the code being tested is a relatively early version, designed to stress test servers as well as highlight bugs that need fixing.
"The Battlefield 3 Open Beta is based on software that is more than one month old." writes Trodsson. "We need to test the new back end dedicated server structure we've built. Not only have we built a new game engine, but an entirely new back end system so that everyone can enjoy the benefits of dedicated servers on all platforms.
"Just like normal procedure when releasing a game, the Open Beta has had long lead times due to testing, certification, and setting up. This means that the code you are now playing is actually quite early and not representative of the final game.
"The final game will look, play and sound better than the Open Beta. You have helped making sure of that."
This is good news for anyone who's tried to have a lie down on the opening section of the Operation Metro map, only to phase bodily through the floor into the infinite grey netherworld below. DICE only have three weeks to polish up the latest build they have tucked away at DICE HQ. Battlefield 3 is set to hit the US on October 25, and Europe on October 26.