Bah, screw ground targets, if you want to ground pound use bombs/cannon/standard rockets
I'd LOVE to have the upward angle (and in fact I think they are modeled -- visually modeled, that is -- angled up. If you look at real pictures they were a good 10-15 degrees tilted up (if not more!).
I'd LOVE to have them fire ballistically (hell, all guns currently do, the 21 should too!!)
Maybe then people would stop asking for the uber rockets for the 262, if these ones worked.