Well, a vote of confidence can't hurt. [There's a sort of dry amusement in her tone at that, as if to say it's not going to make much difference either way. Mikumo can be on the blunt side about matters like this.]

At least the different entrances offering best to different skillsets presumably means people won't all be trying a single entrance. Even the most inattentive guard would find a reason to get suspicious about that.

[Not one to linger too long in the current environment, Mikumo starts moving quietly to the next spot she'd intended to watch from before entering - she'd like a more direct view of the guard routing around the ventilation system before she tries it, even though it looks relatively overlooked from what she's seen so far.]