It would be a heavy lift proposition, of course - but it is feasible. I dunno if that is the real deal or a clever photoshop.
I've never fired a rocket launcher before but the limitations of them, if I understand them correctly - is that the weapon needs time to lock on to its target. That's okay if you can fire from a place of concealment. But if not... you would have to expose yourself for the time it takes to lock... thus exposing yourself to the surly, sharp eyed machine gun operators that might be riding in the tank or truck you're shooting at.
One of these a hundred feet up would give you your chance to line up AND keep an eye on the other target(s) and threats downrange. I still think the kamikazee drone concept like the Switchblade might be a better way to go... but I might be convinced otherwise.