Turns out……. people do not really understand how to play the mode, instead of breaking down the shield, they spent most of the time trying to hit me with my shield active, I fired once to the guy carrying the plasma, hoping he would just take the warning and take the shield down, no success, afterwards, I just AFK'd in the middle of Steppes. and I won 😐
Now I am left wondering, is the mechanics really hard to understand? or people didn't want to miss out chance to rack up the damage for the missions?