What gaming headset to buy

I'm looking to buy a new gaming headset and I want something very high end.

Currently I'm using the Astro a50x and I find them to be very mid.

Any advice is welcome cause I don't know much about headsets and audio. I simply want something that will allow me to keep track of enemy sounds like footsteps in games. But at very good quality.

I looked at the HDB 630 and the Sennheiser HD 490 Pro and the Audeze maxwell.

HDB 630 has only just been released to not much information is out yet.