In Ant-Man,
Hank Pym says that his wife shrunk to the quantum levelrealm in order to slip through titanium so that she could get inside a missile in order to disarm it. ... But that she was then unable to get out of the quantum levelrealm, so she was lost forever.
If she was stuck in the quantum levelrealm, how could she possibly have disarmed the missile?
I am wondering if this was ever explained in the comics.