Jin took a few steps back and started running towards the weakened portion of the underground door and with a leap, he extended his leg to dive and smash through the entrance.
"NOW!" Jin's command enabled Click to simultaneously cut the power underneath the church premises, causing the blackout within the Rebel's tunnel.
This sudden change in the environmental setting caused the Rebel Mechanoids holed up in the tunnel to have a lag in their processing speed. While they were not like humans to process the shock, the loss of lighting plus the instance of Jin smashing through the entrance is like a flashbang to their decision making tree.