Excerpt Technical Manual 2047

GDI has 3 basic base defenses with which to ward off enemy attacks: The Watchtower, the Guardian Cannon, and the AA Battery.

 The Watchtower stands 30ft tall with twin 20mm railguns mounted atop it. Equipped with an IR spotlight and next-gen sensor to detect stealthed units, this anti-infantry defense tears enemy infantry to shreds. Programmed to attack any ground unit that comes within its range, the Watchtower is also able to distinguish between infantry and tanks, and will prioritize the infantry over tanks so as to maximize the lethality of its anti-personnel ammunition.

 The Guardian Cannon is equipped with a 105mm gun capable of ripping through the heavy armor of tanks. The Guardian is an anti-vehicle weapon and is not as effective against infantry.

 The Anti-Air Battery has twin 30mm Gatling guns firing depleted Uranium shells at air targets.  With a deadly accurate fire control system and a staggering rate of fire, the AA Battery is very effective against any form of aircraft.

摘自技术手册2047

GDI有三种基础防御设施用来抵御敌军的进攻：警戒塔，守护者火炮和防空炮组。

 警戒塔高30英尺，顶部装有双20mm电磁炮。这种反步兵防御设施装备有红外探照灯和用于探测隐形单位的新一代传感器，能把敌军步兵撕成碎片。警戒塔被设定用于攻击射程内的任何地面单位，而且能够区分步兵和坦克，步兵的优先级高于坦克，从而最大限度提高其反人员弹药的杀伤力。

 守护者火炮装备一门105mm火炮，能够撕开坦克的重型装甲。守护者是一类反载具武器，对付步兵不是很有效。

 防空炮组有双30mm盖特机枪，向空中目标发射贫铀弹。防空炮组有着致命精准的火控系统和惊人的射速，对任何形式的飞机都非常有效。