Heat Of Battle.

Shi Lang gave the order to the teams and they all turned off the electronic devices on their bodies. The outpost was surrounded by metallic walls, and the bulk doors were manually operated. Yes, they used the improvised ancient chain and pulley system for opening and closing the door. This was done to reduce the risk of being choked inside. 

The soldiers operating the door mechanism wished them similarly to the others, "Godspeed." and they pulled the levers to open the doors. Shi Lang and the team rushed out holding onto their guns. 

They were just about to cross the threshold when they heard a slight buzz passing their ears. Shi Lang reacted and said, "Teams Split. Five minutes to take cover and then restart all your equipment."