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Ever since that close call in Baghdad, where someone nearly turned the tables with a directional mine, Gao Guang had developed a keen interest in directional mines.
If you can't beat 'em, join 'em. Since directional mines were so powerful, compact, light, and cheap, why shouldn't he use them too?
Of course, Gao Guang wasn't planning to rig directional mines right now. With so many people coming in and out of the factory, setting up directional mines at this time would have been downright dangerous.
Hence, his plan was just to prepare the directional mines so that they could be used at any moment when necessary.
He opened the boxes, took out the shells, and attached the detonators to make them ready to explode; then he prepared the tripwires, pull-fuses, and the wireless detonators needed for the mines, so they could be used as soon as they were needed.