Activision has announced a special bonus for the 'Call of Duty: WWII' multiplayer beta.

The video game publisher is scheduled to launch the beta this month, and it's been announced that gamers will be able to enjoy the MP Private Beta Combat Pack, which includes a helmet and a calling card.

What's more, those who try their hand at the beta version will be given an emblem that gamers can use to show off that they've played the teaser.

The announcement comes shortly after Glen Schofield, Studio Head and Co-Founder of Sledgehammer Games, said that 'Call of Duty: WWII' will include an all-new 'Nazi Zombies' mode.

The developers at Sledgehammer have said the "twisted" new version of the popular mode - which has featured in 'Call of Duty' games since 2008 - is set to be full of "terrifying characters".

Glen explained: "With 'Nazi Zombies', we're creating a frightening world full of terrifying characters and events that will make you jump and look over your shoulder.

"There's an incredible amount of myth and lore, which our team has poured through in our development. This is unlike anything before, we're taking players to some very dark, grim places in 'Nazi Zombies'. This is one hell of a horror experience."