Call of Duty: Black Ops 4 doesn't have a recharging health system or a traditional single-player

Instead of fixing all those bullet holes by avoiding damage for a short time, Black Ops 4 introduces an all-new, manual healing system.

In Black Ops 4, you instead have some kind of stim injector that you jab into your arm for a quick health recharge. From what we saw at the reveal, the animation is as nippy as you’d expect in a game about knee sliding while shooting people in the eyeballs.

Treyarch says this new system adds a refreshing layer of tactical considerations to combat.

Call of Duty is no longer just about who shoots first. Correctly choosing when to rush in or when to use a health stim will often be the difference between victory and defeat.

As well as the new healing mechanic, Black Ops 4 aims to make things more thoughtful with specific characters who specialise in different skills, from assault medics to heavy weapons experts who focus on area denial.

While the core combat appears unchanged, Black Ops 4 seems to be all about offering more choice - unless you were looking for a traditional single-player campaign.

Despite showing a more fleshed out Zombies mode, the multiplayer, and a battle royale mode called Blackout, there’s been no word on a proper single-player campaign. However, there will be playable single-player missions for each of the unique operators.