double the sales of the previous entry in the franchise, Call of Duty: WWII seems to be a big success for publisher Activision. A big part of that success has to do with the developer, Sledgehammer Games', return to World War II as the setting.

World War II was the deadliest conflict in human history, involving over 100 countries around the globe. While past Call of Duty games have attempted to capture the sheer magnitude and impact of such a war, they've rarely been able to do so. Most online multiplayer battles in the Call of Duty games are usually about getting the most points. Players focus more on their kill/death ratio and less on the team. That's precisely what the new War mode aims to change.

In War, players are split into two equal teams known as Offense and Defense. The team that's on Offense has to complete an objective or series of objectives to win the match, while the team on Defense has to stop them. This probably sounds familiar to fans of the popular multiplayer hero shooter, Overwatch, and that's for a good reason. Not only does it have some noticeable similarities, but Activision also owns Blizzard, the developers of Overwatch.

One of the War maps tasks the Offense team with escorting a group of tanks through a small town. If successful, the offense team then has to refuel the tanks by bring fuel cans to the back of the tank and pouring in fuel. After that, the same team needs to escort the final tank to the end of the level. If the Defense team stops the Offense team at any point in that progression then they win, but if the Offense team makes it to the end, they win. All of the War maps work like this, but they each have different objectives. In another map the Offense task is to repair a bridge, for example.

The game mode serves as a welcomed break up of all of the other modes that feel like glorified variations on Team Deathmatch and almost never encourage team work at all. In War, you must to work together in order to advance the objective. This is great not only because it's a much needed addition to the gauntlet of "spawn, die, repeat" that plagues the online multiplayer in this series, but also because it better emulates the feeling of being at war with bullets flying and relentless chaos accentuated by the t push towards a common objective.

Call of Duty has been in dire need of something like a reboot of sorts for years and WWII is exactly that. By sending a jolt of visceral adrenaline into the veins of the campaign, overhauling multiplayer with an innovative War mode, and revamping Nazi Zombies to be even more terrifying than before, Activision has made great progress. This is shaping up to be one of the best in the franchise and new additions like War are a big part of that.

Next: Call of Duty: WWII Sells Twice as Much as Previous Game

Call of Duty: WWII is now available for PlayStation 4, Xbox One, and PC.