Just to confirm this Firesoul, the neutral-space DV drops are different than the patrol bug.
Even with the patrol bug fix, practically every mission undertaken in neutral space reduces the hex DV - regardless of mission result.
I've yet to see a working fix for this one, in EAW or OP. In fact, even getting the mission scripts to return a result of draw still forces a DV drop in neutral space.
I spent a lot of time hacking at this one back when we were first working on the patrol bug, and it seems that if the script reports a result - any result at all - in neutral space then the hex DV is lowered.
That led to some of the EAW campaign experiments on replacing neutral space with pirate space, because as long as the space is owned by SOMEONE you can get mission results working.
dave