Are TakaraTomy not releasing the same toys as Hasbro, but just with Japanese legal blurb stickers? Bludgeon and Ruckus were both never released in Japan during G1, so I imagine that there would be quite some appeal for these characters among Japanese fans.
Yes. The guns can rotate both longitudinally and radially; so they can swing back and forth, or the barrels can spin. The cannons are also detachable (they come detached).
The antonym of deployed is "ployed."
"They are said to be in ployed formation." - A Military Dictionary and Gazetteer (Wilhelm, T.)