Besides wait and follow me, there are quite a few times I had a run command.
When you fight large hordes, Ashly just gets in the way, and having her wait is risky.
She's good bait
use Special costume set no 2. she's invincible, even to boss and rocket launcher damage.
use her as bait since she's too heavy to be carried... proceed to #Winning
Special costume 2 is the answer :)
Well yeah, that's obvious. But don't you have to beat the game to get it? Starting off, you're very ill-equipped when it comes to Ashley...