Same. I paid for Dolby Atomos for Headphones through Dolby access. It was a few quid and makes COD MW sound fantastic though AKG 702 headphones.
It sounded good anyway but much better with Atmos without being too 'virtually ott' Dolby headphone and Dolby Pro logic IIx sound way to artificial - sort of like everything was in a large cathedral or shouting accross the grand canyon
Dolby Atomos just makes it sounds a bit better in terms of positional audio like bullet fire and footsteps which makes it easier locate people / things, without it being to OTT. I often have teammates asking how I know exactly where supply caches are or where enemies are