the next EXE will have GPS and laser RF additions to arty spotter accuracy in calling fires.
Laser RF (rf 20+), if in LOS to the target hex, will tend to reduce initial drift hex. i.e the plot hex will tend to be more on-target.
GPS is represented by an EW value of 15. Art observers with GPS will have initial drift halved, even if the target hex is out of LOS. If the arty skill roll for way off target is failed - GPS will reduce the max size of this effect as well, whether the call was on a priority target or an impromptu one. (GPS accuracy on out of LOS hexes which are impromptu will be about the same as for calls on a registered tgt at the moment).
The most accurate call for arty fire therefore will be an art observer unit/vehicle with laser RF at up to 2 times RF value range who is in LOS of the target hex and who also has GPS. Mostly - unless a skill roll is failed - the max drift here will be 0 or 1 hex max.
The added cost will come from the cost calculator (additions for range finder and for 15 EW points).
This will have to be playtested by the test team to see if it is working etc, (just coded it today), and added to units in the OOB etc. We will also have to look at cost adjustment if these things turn out to be "Thor's Hammers"

!
Cheers
Andy