I would say yes and no.
Obviously in a marked vehicle, yes. For unmarked vehicles, the ratio might not be one per vehicle. In the unmarked, plainclothes world, when they need the carbines, they work as a group, and they go and do what they need to do. They will take the carbines that they need for that. They are not reacting to front-line policing. There are other people who do that.
That's why I say yes and no.