The AK74u cannot be unlocked for the US team. I know there are some weapons including the RPK, and a few others that can be unlocked for opposing teams, But I don't think the AK74u is one of them.
Level 40
Unlock it by playing as a support.
Battlefield 3 does have Co-op mode, you can also unlock weapons for use in Multiplayer from playing Co-op.
in order to unlock it you have to complete the challenge "No russian"? it appears after every game what changes you are working on i have unlocked it
In Battlefield 3 online multiplayer, the player can unlock weapons and other gadets by gaining points. The "C-4 Explosives" unlock for the Support class is unlocked by gaining 4000 score as the Support class.
US players can unlock the MP-443 by obtaining the first Service Star for the plain old M9 but will it also unlock if I obtain the first Service Star for either the M9 suppressed or the M9 tactical.
Is what a good set up for battlefield 3 you haven't shown us anything.
The Battlefield 3 Limited Edition includes the standard game, but will automatically unlock the 'Return to Karkand' expansion when it launches in December.
Trust me, you'll get so bored with having nothing to unlock. Just save your money and unlock the stuff
The last unlock for every class is the other teams weapon for that class.
You can pick them up from dead soldiers on the battlefield, but other than that, No. Well, not legaly anyway.
You unlock the l96 by completing the recon assignments in the back to Karkand expansion pack