So question... how come no EMP effects? read up on Starfish Prime Some form of disruption would be ... novel, mutually assured disruption obviously, unless you issue a... powerdown in time: risk-reward - shut everything down for 5seconds just incase a high alt nuke is going off & get a surprise attack OR don't shutdown and the UI has some funky distortion for 15seconds?
For instance the scenario you describe: Game designers generally shy away from things that take control away from the player, at least good ones. Other than that... You realize that your weapon once built has almost unlimited power. Making your enemy switch off it's production...