I want to find out when there are multiple objects destroyed in a frame or a certain amount of time, depending on that there will be more or less score, how can I accomplish this?
I don’t think so. But even if unity3d have it, in the long run don’t appear to be a good way to implement this feature.
There many ways to implement this, one Simple is to create a script that OnDestroy send a message to some Score Manager (search for singleton pattern). Give you a good flexibility, independence and centralized control.