Heyyy huge thanks to you both for that information. That is enormously helpful and clears up a lot for the community.
It sounds as though the plan for the reprint for ROF (at least from how I'm reading this) is to leave in the ROF 1 for things like grenade launchers, mortars, and higher caliber cannons, in the interest of allowing those weapons to get extra successes or force CUF rolls even if they miss, despite the fact that they only fire 1 round. And then keep higher ROFs for the smaller cannons (20-40mm).
Can it be clarified if this section from pg. 67 of the Player Manual will also be removed in the reprint?
"HEAVY WEAPONS such as RPGs, grenade launchers, mortars
and howitzers don’t use ammo dice. Each attack consumes
one round of ammo. Read more on page 70."
Alternatively, will the ROF just be removed from items like RPGs, grenade launchers, mortars, and large caliber cannons to bring them in line with that section?