Call of Duty: Black Ops 3 will allow players to start anywhere in the campaign according to a recent preview done by GameRadar.
The reasoning behind this is for the sake of co-op gameplay. It allows players who pick up the game after their friends have already progressed through the campaign to join them at virtually any point without a hassle.
According to Treyarch, players will also be able to share guns with others who jump into their campaign completely underpowered.
Call of Duty: Black Ops 3 will be available on November 6th of this year.