Among the three routes, the assault team on the upper route is truly aimed at the enemy's vital point, theoretically the most difficult with the greatest rewards, and relatively the highest risk.
The lower route also involves a feigned attack, but it is a route the enemy can anticipate, with relatively weaker defensive forces.
The central route is the easiest, moving with the main troops, but doesn't require true confrontations; it's enough to make some noise for the enemies to notice, with at most a few small-scale encounters. Even if an enemy main general is attracted and can't be confronted, with numbers and mixed attention, escaping won't be difficult.
In any case, Secret Realm agents are not Liangting people; at critical moments, preserving one's life is enough, there's no need to truly sacrifice for the Secret Realm World. This Secret Realm doesn't have the overseer mechanism of the Liangting border, running away won't result in beheading.
