doing the beginning this way is actually pretty stupid, you're better off just playing as wen yang and getting a musou drop for both officers

i lured the 4 enemies to ensure they don't all get defeated, which would prompt the enemy to retreat, causing dialogue (they can still die if you do this)

overall, you can easily shave off 10 seconds by not killing the messengers late (i believe all the stage dialogue will take prio over it) and reaching the enemy main camp gates in time, unlike me