Oberst Balck said:
1) Can a gun that lost its ROF during First Fire ( gee look at that big tank Joe; lets do something) fire again. If so is it DF or IF and in either case can the second shot be against a non adjacent target.
The answer partly depends on whether this second shot is Defensive First Fire (fire during the enemy MPh) or Final Fire (fire during the DFPh).
If the former, C5.6 applies, giving it a second shot without any restrictions (although with +2 TH DRM and decreased B#).
If the latter, A8.4 gives an additional restriction:
"... only at units in an adjacent (or same) hex"
2) Can a gun that uses its ROF in the DFPh use IF at a non adjacent target?
This one is more problematic to answer using the rules alone. A8.4 only grants an additional shot to weapons marked with "First Fire", not to weapons marked with "Final Fire". So there's (at least) three possible interpretations:
1) That A8.4 doesn't apply at all when the Gun is marked with Final Fire - thus allowing IF vs non-adjacent targets.
2) That A8.4 applies and prohibits the shot entirely for the Gun as it does for other types of weapons.
3) That A8.4 applies and treats a Final Fire-marked Gun as if it was marked with First Fire only - i.e. allows IF vs adjacent targets only.
As you see from the Perry Sez above, Perry chose answer 3. Unfortunately that one is the one that is certainly
not supported by the current A8.4 - although it is probably the interpretation that makes most sense.
So it depends on how much you value a Perry sez. that makes sense but is not supported by the rules. I prefer to follow the Perry sez., but will do my best to get an errata in J7 so that this rule is clarified. I don't really mind very much which interpretation that becomes official, but I'd like the rule to get clearer than it is now.