Nice idea, but haven't they learned that no-one wants split cylinder halves these days? The whole purpose of turned barrels is to overcome splits like this! AFV Club produced circumference split rounds for the Stuka Zu Fuss and their Sturmtiger and the molding seam line is easier to remove than a join.

Didn't they already have a set like this that was released a while back?

Not exactly... there was a launcher with trailer And a frame for launching the rockets

Useful, though I personally would like the set to include many more empty crates and only a few rockets as I want a dio that depicts a bombardment and simply buying enough full sets gives me the crates but far more rockets than I need or want. Perhaps MiniArt could release a second set for people like me?