Payment Create API :: What Events Are Triggered

Good day

We have started using the new payments API

What is not clear is what events fire off of the different permutations of the payment object sent through successfully. What events/communications are fired for the following?

payment_type
premium_type
collection_type

Do we need to use collectiontype = debit_order to fire off the debit order comms?
If we do use a debitorder* type other than comms are there any other things that happened (bear in mind this is for a payment being fed in where the product module is configured to external payments)?