The latest Battleblog has new information regarding Battlefield 3's unlocks, which are apparently abundant enough there will be "years worth".
The post goes into detail regarding Medals, Service Stars and Ribbons for "exemplary skill" which could include capturing a certain amount of bases or keeping vehicles in working order to service your team. And that actually collecting these will be no mean feat.
They also mention that Battlefield 3 will have "more than 10 times the hardware unlocks spread over weapons, weapons attachments, gadgets, and a huge unlock tree for vehicles alone" than Battlefield: Bad Company 2 had.
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