Everything you’ve seen of SOF Studios’ SOCOM-inspired H-Hour: World’s Elite for PlayStation 4 and PC up until now has been Unreal Engine 3-based proof of concept. Today, the developer lifted the lid on the game’s Unreal Engine 4 makeover.

“A few weeks ago we stopped all work on the proof of concept. We had passed the point of diminishing returns. We had all the gameplay in place that we could reasonably expect and perhaps more significantly, we could not make the game look any better in Unreal 3,” creative director David Sears said in a blog post. “So we dove into Unreal 4 to learn the tools and to get started on the transition from Unreal 3 to Unreal 4.”

Have a look at the Unreal Engine 3 vs. Unreal Engine 4 version comparisons below, showcasing the remade church area, which Sears says has become “a completely different place that will play exactly the same as the original.”

H-Hour: World’s Elite is due out in 2015.