The BBC amongst others report a long range raid into eastern Syria to get a Daesh logistician:
The US says its special forces have killed a senior Islamic State (IS) member and captured his wife in a rare ground raid in eastern Syria.Abu Sayyaf helped direct oil, gas and financial operations for IS, as well as holding a military role...
Link:http://www.bbc.co.uk/news/world-middle-east-32764995

Clints Watts at FPRI writes that:
This daring U.S. raid and its great success likely signal a turning point in the fight against ISIS.
Link:http://www.fpri.org/geopoliticus/201...e-game-changer

Yes there maybe an intelligence gain, it may disrupt funding via oil & gas production (IIRC mainly sold to the Syrian regime) and affect the confidence of Daesh supporters / fighters. I am doubtful from this armchair that it is 'game changer'.