In Battlefield 3 for the PC, PS3, and Xbox 360, there are several weapons and equipment items you can unlock for the multiplayer modes by getting points in co-op mode.

Here are the weapons and equipment you can unlock in co-op mode, and how many points you need to get to unlock them.

63,000 points – MP412 REX Pistol
126,000 points – KH2002 Assault Rifle
189,000 points – MP7 PDW
252,000 points – M39 EMR
315,000 points – 93R Pistol
378,000 points – SG553 Carbine
441,000 points – G3A3

Update
MP412 REX       5,000 points
KH2002             17,000 points
MP7                   34,000 points
M39 EMR          58,000 points
M93R                 86,000 points
SG553               120,000 points
G3A3                 160,000 points

Thanks for the post Silent Wolf!  Good info to have.

Alright, Who still needs to do these?

WHen you unlock these in CO-OP, are they immediately available in MP, or do you still have to work to get them?

Im not 100% sure but I think the unlocks come up right away.

they immediately come up.  I want that SG556... in game and IRL...

Cool ...It's neat that they have so many different items available in BF3 to unlock as you progress through the game.

Still looking for people to do Co Op with

Me too, Timmy. I'll be sure to harass you when i see ya on TS. Apparently all those weapons can be unlocked in as little as two hours. And I've read that the last mission has the best point to time ratio.

Maybe want to update that first post, as they drastically reduced the required points. not you only need 160,000 to unlock them all.