Intercessor
Intercessors are the equivalent of Tactical Marines. They have an extra wound and attack compared to the original Tactical Marines and a Cawl Pattern Bolt Rifle in the place of the regular bolter, which should let them last a little longer in melee and give them a better chance against light vehicles than a bare-bones Tactical Marine squad. However, they also cost more points to field and cannot equip any special or heavy weapons, so they are going to require support against uber-tough models and won't be as flexible as their Tactical Marine counterparts.
