Rumour -
That being said, we have seen some internal documentation from the game that gives us a good idea of what to expect from Contraband as far as gameplay and features are concerned. Keep in mind, all of this is subject to change throughout Contraband's development.
Open-world vehicular combat
While Contraband's focus is on co-op heists, the delivery method is the vehicles. Contraband is reportedly "vehicle-first," with your vehicle being a crucial and wildly customizable tool. Using vehicles, players will be able to maximize their defensive and offensive power as they explore Contraband's diverse open world. Of course, vehicles will also feature a wealth of different utilities, tools, and potential upgrades so that players can outfit them for their playstyle and specific heists.
Because of Contraband's central vehicular gameplay, combat is also most prominent on wheels rather than on foot. Most interestingly, it seems that Contraband considers guns to be a last resort for players rather than as the initial response to danger. Vehicular combat is more dynamic and fluid, as players and enemies both wish to avoid damaging smuggled goods and treasures at any cost. That means the end goal for both you and your enemies is to disable and stop vehicles rather than destroy them.
Vehicular combat is notoriously difficult to nail, but Avalanche's pedigree makes me confident they'll be able to pull it off. The focus on "non-lethal" combat is especially interesting, and ties into Contraband's overarching theme of heists and thievery over needless violence.
Co-op and game-as-a-service
Contraband is a co-op game, where up to four players work together to pull off crazy heists all over the fictional world of Bayan (inspired by the South Asian coast). Proper planning and management are crucial, and a team of collected members to pull off difficult heists ties into your chances of success. You'll be able to meet up with players through online social hubs, making it easier to team up and play.
Going hand-in-hand with Contraband's co-op focus and open-world heists is its designation as a "game-as-a-service," meaning Avalanche intends to evolve and add to Contraband constantly after it launches. Contraband's service ambitions align it closely with Sea of Thieves, a game that has enjoyed immense success due to its relentless content updates and post-launch support.
It's not clear how Contraband will grow after it releases, only that Avalanche aims to keep the gameplay loop fresh with new content and reasons for players to return. We'll likely continue to learn more about Contraband and its intentions to grow continuously as we get closer to release.
Single-player campaign
Most games that put their focus on co-op, online play, and continual post-launch support often neglect single-player or deign not to include a campaign at all. GTA V, for example, has enjoyed countless updates to its profitable GTA Online mode, while its single-player world has remained effectively unchanged for years. Contraband is, at least partially, shirking these "game-as-a-service" expectations by reportedly including a single-player campaign.
Not a lot is known about the single-player campaign (officially nothing) other than its planned inclusion and the basic premise. Contraband will pit players against a fictional corrupt dynasty known as The Vong that is terrorizing the area of Bayan. How long the campaign will be, gameplay mechanics, characters, story details, and whether or not Contraband's single-player campaign will also enjoy post-launch support all remain entirely unanswered questions at the moment.
https://www.windowscentral.com/contrabandGood for me personally there's a single-player campaign.