How to unlock the SPECACT weapons in BFBC2?

ambam

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Jun 5, 2010
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I have unlocked all of the weapons and other gadgets in battlefield bad company 2, except the "special action" weapons and the elusive M1 Garand. These weapons cannot be unlocked through rank, so how are they really unlocked? What advantage does the special action give over the regular version of the weapon?
 

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