Each weapon has trade offs, like a higher rate of fire in exchange for less bullet damage. (voxelvoice.com)
The player will also unlock perks, which modify certain gameplay elements like unlimited sprint and increased bullet damage. (propcgame.com)
The class bonuses sound like a great idea, especially with bonuses like the Gyro Stabilizer which grants an additional 8 % recoil dampening, 6 % accuracy, and 2 % bullet damage per point invested. (playstationlifestyle.net)