Their enemies were patrolling the area as groups of two, so they had to knock them out without any of them being able to make any sounds.
They knew the layout of the base very well. If they could utilize their knowledge to their best, they would be able to resolve this issue easily.
After crouch-walking towards the base for two nerve-wracking minutes, they managed to reach one of the tents on the outer side of the base.
Aston gestured Song Lei to get away from him and hide behind the tent that was next to the one they were currently hiding behind. Song Lei nodded and went to the next tent like a ghost. Even if there was someone that was looking towards him, they wouldn't be able to notice him moving. It was like he had blended into his surroundings.