SAM
You say "These missiles are extremely unstable due to liquid propellant (I wouldn't go within 1000 metres of one..). They are operated by conscripts under duress, who probably haven't a clue what they are doing."
I was always under the impression that the Revolutionary Guard operated an autonomous missile command and the Revolutionary Guard were not a bunch of conscripts ?
I also find it hard to believe they would stick conscripts in charge of missiles or anything to do with them.
Ungrounded earth cable ? Very specific, too specific but it does follow on from my Static electricity comment.