Controller

How do I sync a ps4 controller to pso2 PC?

It seems you can't on the NA release without using third party software as the NA release appears to only support XInput devices. This is a pretty major step down from the support on the Japanese PC version and desperately needs to be fixed.

I use InputMapper, but if you want just straight Xbox controller emulation with no frills, SCPToolkit is probably the simplest solution.