During an event last night, Lars Gustavsson said that DICE has heard the criticisms of the unlocks system found in Battlefield 3 and hopes to rectify that with Battlefield 4.

Undoubtedly, the vehicle unlocks were a huge negative as far as the unlocking system went in BF3. If you were even a month or two late to the game, you may as well not even bother with a vehicle because everyone else already had a ton of unlocks at their disposal.

(via VG247)