The lethal ISIS gunmen use local smugglers to blend in and travel amongst a huge tide of illegal migrants flooding Europe.
More than 1.5million refugees have fled into Turkey alone – desperate to escape the bloodshed in Syria.
From Turkish port cities like Izmir and Mersin, thousands of refugees venture across the Mediterranean aiming for Italy, he said.
Then the majority make for more welcoming nations like Sweden and Germany, turning themselves over to authorities and appealing for asylum.
"They are going like refugees," he said.
Two Turkish refugee-smugglers backed up the claims made by the ISIS Syrian operative.
One admitted to helping more than ten trained ISIS rebels infiltrate Europe under the guise of asylum seekers.
He said: "I’m sending some fighters who want to go and visit their families.
"Others just go to Europe to be ready..."