This is a fairly standard campaign length for a modern Call of Duty game, which usually lean towards being short and punchy rather than extended military campaigns (so to speak). Actual missions in COD Vanguard are a bit longer than you'd expect though.
Highly recommended for CoD fans and people looking for a bit of mindless fun set in WW2. Even though the campaign is extremely predictable and the multiplayer is plagued with tones of issues, Call Of Duty: Vanguard is, after all, still a Call of Duty title, and will appeal to all hardcore Call of Duty fans.
At roulette, the odds are constant, and past outcomes have no effect on future play. On a double-zero wheel, the chances of any given number showing up are 1 in 38, every time, no matter what has gone before.
THE PHYSICS OF ROULETTE. Our understanding of the physics behind the movement of the ball and wheel is pretty solid governed by Newton's laws of motion. As the ball slows, gravity takes hold and it falls into one of the numbered compartments. It is predictable when the ball will leave the rim.