It's just a remake of original mod Zombie Panic! Source for VR (HTC Vive/Oculus Rift)
Wait, you're moving the whole project to UE4 now? Or making a separate version for UE4 while still working with Unity version as well?
For now I make 2 version: for Unreal and Unity. I want to see, what version most people would like to see and play. After this I'll be make game for engine, what they vote.
Isn't best to just go with what you know and are better experienced with both are capable game engines.
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