Dont see any problem with the idea, i think its fine, given that this is set in the future, and for the most part, based on andvanced technology, to me it fits the bill perfectly.
its an extension on a current real life idea, your about to be discovered by the enemy, you dont want that for whatever reaon, so you throw a stone elsewhere, to destract them, and usually thats the way they go.
Same ****, Dirrerent way,
