Yup same trend from ArmA II - quad cores 50% usage, hexacores 33% usage and octocores 25% usage.

Except this time the improvements on the engine are too much for this 25% scrape of the CPU power and it lags everyone, ESPECIALLY AMD CPU's WITH LOWER PERFORMANCE PER MEGAHERTZ.

The problem is even worse on a 40-player Wasteland server for example. It's a constant diashow at 20fps and worse, only when youre aiming at your feet the performance is acceptable.