The line comes from Command & Conquer: Tiberian Dawn, the 1995 Westwood Studios real-time strategy game that launched one of gaming's defining rivalries between GDI and the Brotherhood of Nod. Like many unit acknowledgments from that era, it was recorded as a short battlefield quip and stuck because players heard it hundreds of times mid-match. It belongs to the same family of terse military callouts as enemy spotted, and decades later it circulates on soundboards where strategy veterans recognize it instantly while younger creators borrow it as a ready-made threat wrapped in politeness.