Having a hard time with this one. It seems like the example of A9.221 is incorrect.
Per A9.22
A Fire Lane Residual FP counter exerts a unique form of Residual FP in its Location, and in every same-level (B.5) Location of the Fire Lane Hex Grain between that counter and the MG, that is within the MG's Normal Range and in the LOS of its manning Infantry (when tracing their LOS to the hex center dot).
Per A9.221
A unit crossing a hexside to enter/exit a Location where an Alternate-Hex-Grain Fire Lane exerts Residual FP may be attacked by it as a Snap Shot, provided the hexside being crossed lies along the Fire Lane's LOF
Here is part of the example after A9.221, I underlined both instances that seem to contradict the above rules.The rules are saying that a hexside can be subject to a snapshot attack only if the entire hex is subject to the firelane residual, however the example indicates that the hexside is subject to a snapshot even if MG does not have LOS to hex center dot. What am I not seeing
A unit Assault Moving from K6 to J6 can, at the DEFENDER'S option, be attacked using two Residual FP either as a Fire Lane Snap Shot (with Wall TEM; 8.15) at the K6-J6 hexside, or as a normal Fire Lane attack (with a -1 FFMO DRM) in J6. The latter is the better attack, but if a stone building existed in J6—or an obstacle in K8 blocked the firer's LOS to J6—the Snap Shot would be a better choice. A unit that starts its MPh in J6 by moving to K6 can be attacked by the Fire Lane only as a Snap Shot; however, if it were already vulnerable to Defensive First Fire in J6 it would undergo a normal Fire Lane attack there (thus prohibiting the Snap Shot), unless no LOS existed from the MG to J6 (in which case the Snap Shot would occur as it crossed hexside J6-K6 regardless of whether or not it began its MPh in J6).
Per A9.22
A Fire Lane Residual FP counter exerts a unique form of Residual FP in its Location, and in every same-level (B.5) Location of the Fire Lane Hex Grain between that counter and the MG, that is within the MG's Normal Range and in the LOS of its manning Infantry (when tracing their LOS to the hex center dot).
Per A9.221
A unit crossing a hexside to enter/exit a Location where an Alternate-Hex-Grain Fire Lane exerts Residual FP may be attacked by it as a Snap Shot, provided the hexside being crossed lies along the Fire Lane's LOF
Here is part of the example after A9.221, I underlined both instances that seem to contradict the above rules.The rules are saying that a hexside can be subject to a snapshot attack only if the entire hex is subject to the firelane residual, however the example indicates that the hexside is subject to a snapshot even if MG does not have LOS to hex center dot. What am I not seeing
A unit Assault Moving from K6 to J6 can, at the DEFENDER'S option, be attacked using two Residual FP either as a Fire Lane Snap Shot (with Wall TEM; 8.15) at the K6-J6 hexside, or as a normal Fire Lane attack (with a -1 FFMO DRM) in J6. The latter is the better attack, but if a stone building existed in J6—or an obstacle in K8 blocked the firer's LOS to J6—the Snap Shot would be a better choice. A unit that starts its MPh in J6 by moving to K6 can be attacked by the Fire Lane only as a Snap Shot; however, if it were already vulnerable to Defensive First Fire in J6 it would undergo a normal Fire Lane attack there (thus prohibiting the Snap Shot), unless no LOS existed from the MG to J6 (in which case the Snap Shot would occur as it crossed hexside J6-K6 regardless of whether or not it began its MPh in J6).