Campaign : Gameplay-wise, WWII is the first title since the original Call of Duty to not feature health regeneration in the campaign. Instead, players must rely on their medic squadmates to provide health packs, as well as other squad members to provide ammunition. In addition to the lack of resources in Campaign, all players are in "Hardcore Mode" automatically, eliminating the campaign's difficulty settings. In May 2017, developer Michael Condrey confirmed on Twitter that the game will not feature the unlimited sprint mechanic seen in the previous two Call of Duty titles.
Multiplayer : A multiplayer reveal for Call of Duty: WWII is planned for E3 2017, which will take place from June 13–15. Sledgehammer Games has announced new features such as the new headquarters social space, divisions, war mode and the return to "boots-on-the-ground" gameplay. This refers to recent Call of Duty games that featured elements such as double-jumping, jet-packing, and wall-running. There will be a new class based progression system. Players who pre-order the game will be invited to a closed beta, which will initially be for the PlayStation 4, but later be released on other platforms. Plot :- Call of Duty: WWII focuses on the actions of a squad from 1944 to 1945 in the European theater of conflict, at a time when the Allied forces were starting to gather strength on their march into Germany. The campaign will cover fighting in occupied France, Belgium, and across the Rhine into Germany. In the single-player campaign, players primarily play as two soldiers of the 1st Infantry Division: Private First Class Ronald "Red" Daniels (Brett Zimmerman) and Private First Class Robert Zussman (Jonathan Tucker). Additional playable characters include Rousseau, a Maquis leader of the French Resistance, and Major Edgar Crowley, a British Special Operations Executive officer. Daniels' and Zussman's squadmates include Technical Sergeant William Pierson (Josh Duhamel) and 1st Lieutenant Joseph Turner (Jeffrey Pierce). Development :- Sledgehammer Games have yet to reveal all the authentic settings from World War II that developers have put into the game's storyline. Activision is refusing to deny claims that Nazi extermination camps could feature in the game.[8] Adam Rosenberg of Mashable wrote that video games set during World War II tend to be holocaust deniers but this could be the very first Call of Duty World War II based game where the holocaust would be depicted. Senior creative director Bret Robbins said in an interview "Some very, very dark things happened during this conflict and it felt wrong for us to ignore that." He further stated “We absolutely show atrocities. It’s an unfortunate part of the history, but you can’t tell an authentic, truthful story without going there. So we went there.” Robbins argued that audiences can now handle games with more maturity and nuance, “People are ready for it. They want it,” he said. When asked directly over Twitter as to whether or not the story campaign would allow gamers the opportunity to play as soldiers from the Axis powers such as Nazi Germany and Fascist Italy, Sledgehammer Games confirmed that the campaign gameplay would be limited to allied forces. More specifically, Sledgehammer co-founder Michael Condrey confirmed that the game will focus exclusively on the Allied powers.