Artillery can fire further than any other vehicle. Use the increased range to disrupt enemy movement from safe distances and use snipers to scout enemy units.

炮兵射程最远，可以安全地从远距离攻击敌人，用狙击手帮忙搜敌。

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The WWII-era pillbox, as it is called, was built to defend the United States from enemy boats that, thanks to war remaining at a safe distance, never reached its shores.

BBC: Abandoned New York City