From "Rites of War"

Preparations for the start of the Third Tiberium War required a very high degree of secrecy.  The need for concealment and stealth coupled with the ever-increasing number of ion storms has forced the Brotherhood to move away from airlift as the primary source of reinforcements for combat units. The Brotherhood is now employing the ultimate in "just in time" weapons delivery: Vehicles are being built on-site within the theatre of operations. Nod War Factories are housed mostly underground and use nano-assemblers and heavy industrial robots to construct and repair tanks, bikes, buggies, and other vehicles. Repair drones orbit around the surface features of the War Factory; vehicles in proximity to the War Factory will be automatically repaired.

出自《战争之礼》

第三次泰伯利亚战争的准备需要高度保密。对隐蔽和隐形的需要，以及离子风暴的不断增长，迫使兄弟会不再将空运作为作战单位援军的主要来源。兄弟会现在正使用终极的“及时”武器交付手段：在战区就地建造载具。Nod战争工厂大多位于地下，使用纳米组装器和重型工业机器人建造并修理坦克，摩托，四轮越野车以及其他载具。维修工蜂在战争工厂的地表部分盘旋飞行；靠近战争工厂的载具会被自动修复。