To build a strong army in World War - ww3 Mode, you need to enlist new soldiers, upgrade your tanks, and expand your air force. All these improvements are powered by your thriving economy, so managing your resources effectively is key.

Espionage is crucial in World War - ww3 Mode as it allows you to gain valuable insights into your opponents' moves through advanced techniques such as using spy satellites.

Yes, economic management is very important. It powers the upgrades and expansions of your military forces, which are essential for your nation's growth and prosperity.

The game simulates geopolitical challenges by placing you in a competitive global landscape where your strategic decisions directly impact your nation's position and influence.

In World War - ww3 Mode, you can customize your units and military equipment by upgrading them, which helps in building a formidable army that can compete on the global stage.

You should focus on a mix of military strategies, economic management, and geopolitical tactics. Balancing these aspects will help you shape your nation's destiny and secure its place in the world.

While specific details about multiplayer options are not provided, given the competitive nature of the game, it's likely that there are features allowing players to compete against each other on a global scale.

The game ensures an immersive experience by offering a thrilling blend of geopolitical challenges, intricate economic management, and dynamic military strategies, allowing players to fully engage in shaping their own destiny.