https://www.pcgamer.com/hugo-martin-doom-eternals-destructible-demon-system-makes-such-an-impact-2016s-doom-is-now-hard-to-play/

Among the many very metal moments of the Doom Eternal reveal at QuakeCon this week was a look at the new system creative director Hugo Martin called 'destructible demons'. This feature means that when you shoot, slash, punch, kick, or otherwise do damage to demons, you'll be able to see it in the degradation of their bodies. Arms and legs can be blown off, and armor can be peeled away.

The impact of this new destructible demon system is such that Martin told me he now finds it difficult to play 2016's Doom.