TFS TeamBuild : AgentScope - Gated Checkin

Question

I have a situation here; I have designed my TFS Team Build 2012 build template as below

1. Run all Activities with in Agent Scope except Gated Check-in
2. Send mail in case of both success and failure of build ( mail carries changeset details
3. since last successful build to this build ), send mail activity happens in finally block ( with in Agent Scope )
4. Gated Check-in ( this is usually the last step to be performed, outside Agent Scope )

Now, my problem is:

1. How can I include Changeset occurred through Gated-Checkin in my mail notification.
2. I cannot push Gated Checkin activity inside AgentScope nor pull out Send Email Activity outside Agent Scope.

How can this be handled?