Why is stealth an important tactic for the Avenger?

Stealth is a crucial tactic for the Avenger because it helps in concealing the unit's position. In military operations, remaining undetected is vital to avoid being targeted by enemy forces. By utilizing stealth, the Avenger can position itself in strategic locations without revealing its presence, thus minimizing the risk of being engaged by enemy fire. This concealment allows the unit to operate effectively while maintaining an element of surprise and increasing its survivability on the battlefield.

The other options do not correctly align with the primary purpose of stealth tactics. Increasing visibility to the enemy is counterproductive to effective engagement. While range of missile fire pertains to the weapon system's capabilities, it does not relate directly to stealth. Reducing maintenance requirements involves logistical concerns rather than tactical operations on the battlefield.