【Arknights】CB-EX-5 challenge mode (Chen's Battoujutsu and Liskarm SP battery)

not sure if I should make a video for normal mode (where one of the criteria to get reward is clearing it without using any of the command center) although their idea is 80% same (hard mode enemy actually hit harder although it is not stated)
the key is blocking the top and bottom lane at first, then only release the bottom boulder and place it at the left only after you clear the first wave from right (ya I failed because I release too soon).

Видео 【Arknights】CB-EX-5 challenge mode (Chen's Battoujutsu and Liskarm SP battery) канала 蔡总二胡