I have to say, this is an awesome idea. Smoke is used and abused more than the T5 scout advantage these days, and its enough to drive you mad. I've seen multiple GB's where theres smoke from the mid area, all the way to the south, and then going up again. Its like nobody cares if they over-use the smoke, because with the events lately, you get more than you use in any given battle anyways - for Free! lol!
would be nice to see something like this implemented even in a less complicated form. Maybe have it act the same way smoke does now, only have form in the shape of a line (puffed out, like an oval shape) that follows the ship that burning the smoke canister. Maybe even have said canisters last for 3-6 seconds with maybe 30 second reloads, and smoke clouds lasting for 5-10 seconds (possibly having 2 types of smoke for extra cost)