Call of Duty Black Ops 4 developer Treyarch has outlined some of the biggest changes that have been made to Zombies on PS4 and Xbox One.

Zombies director Jason Blundell told Express Online that the popular game mode has been completely rebuilt to celebrate its tenth anniversary.

“To mark the 10-year anniversary of Black Ops Zombies, every system in Zombies has been taken apart and rebuilt to give players more power, control and customizability than ever before,” he said.

“We are also releasing more day one content than we have ever done before with three fully loaded Zombies maps included on day one.

“Blood of the Dead is from the original ‘Aether’ storyline and we are introducing a whole new story ‘Chaos’, which is premiering with the maps Voyage of Despair and IX.

“This new story features a brand-new cast of characters, a whole new separate adventure that we will be telling going into the future.”

And that’s not the only way in which Zombies has been changed for Black Ops 4.

Arcade mode Rush is arguably the biggest new feature, giving fans a chance to compete in what has traditionally been a co-operative experience.

That’s on top of new gameplay customisation elements to keep things fresh.

Blundell continues: “We also have a system called ‘Custom Mutations’ which allows players to completely customize their Zombies experience, so they can play the game the way they would like to.”

And speaking of changes, Treyarch has just released a huge update for the popular PS4 and Xbox One game mode.

According to the development team’s Twitter page, the update makes improvements across all Zombies maps.

We’ve just updated Black Ops 4 on PS4 and Xbox One with significant stability improvements across all Zombies maps, including fixes to the Easter Egg quests.

“PC update coming shortly. Thanks again for your patience!”

Call of Duty Black Ops 4 is out now on PS4, Xbox One and PC.