Don't know if it's a planned feature but Nukes cause EMP's. Obviously being close enoigh to the blast wave does kill you in game but I think that within a reasonable distance for gameplay a nuke going off should cause electronic problems at a minimum.
Maybe your jets hud and engines turn off or require a restart? Maybe all radar passing through that area is disrupted due to EM static.. maybe all ground units have a certain amount of time where they go offline due to electronic failures..
There's a lot of cool oppurtunities to include EMP tactics. IRL the nuclear football even has options to blow warheads in the stratosphere just to cause carnage through EMP's.