The Tractor Beam mount is the Wing-Tip turret. When the Reliant becomes flight-ready for Arena Commander, that turret will come stock with a Tractor Beam installed, but the tractor beam can be removed and swapped with a size 2 weapon. Whether there will be more than one turret option (e.g. two size 1 weapons, or one size 2 weapon), or other some configuration will depend on iterations to the hardpoint system and asset creation between now and then.