I disagree with the idea of overwhelming your opponet with armor for the purpose of this thread. If you're trying to out flank and dive a scott, there will be a jackson there to stop you. Your target then becomes the jackson, not the scott. If you're able to get off 3 shots through smoke canister while not risking losses from the jackson I'd be impressed. So impressed that I'd say it was probably the USF players fault, or the unit got caught pathing or something. You simply don't have enough time to all in like that with the threat of snares and jacksons and skill smoke, as i'm sure everyone loves to experience vs ostheer.
So much true that I wonder why USF isn't top1 pick during tournament. Hell their late game is completely OP by your description.