Ok here is the official statement: no blur, just dim and shake.
The Support class was super important in Battlefield: Bad Company 2 because it could heal, but they're given a new role in Battlefield 3:suppression. Shooting in an enemy's general direction is important in real combat, giving your own team a chance to move and gain position while the enemies are frightened into running for cover. Battlefield 3 takes this into account, and anyone firing a hail of lead near foes – something the Support class is especially good at, much more so with a fancy bi-pod attachment – will suppress the enemy. This not only garners points for the shooter, but dims and shakes the screen of those affected. Shooting to kill is an important role, but shooting to provide actual supporting fire is now emphasized as well.
I don't think it will make the player blind like a flash bang for example. Might just slightly prevent the enemy players from wanting to; well many possible things that give the edge for supporting your team. You really dont see how this will make the support class useful and extra fun to play?
This feature will be a great buff for teamwork.
For starters the optics on the Abrams are on the right not on the left.
