That is the only mode now and like you i hate it. When they initially brought the capture zone in it was a solution to people camping at the back to get their supers making matches slow etc. Since then bungie have change super gains so you actually have to be doing damage to get your super quicker, this means there is no reason for this zone, it shrinks the map as everyone just fights near where the zone is and just leads to people using barriers and rifts and just standing there. Im not the best pvp player ive only got to the light house twice but trials is meant to be a test of skill not who can stand in a circle the best.