This is a pretty minor bug, in that it looks crazy, but mechanically doesn't really change anything. Here is how it occurs: 2 gunners One is dropped at a corner of the dock (Dock Gunner) The second is dropped anywhere else. (Gunner B) If you drop a gunner at a corner of the dock, the DOCK gunner will attack, but the shots are launched from Gunner B. The result? It appears like Gunner B has absurdly long range! Note, in actuality, there is no change in range, the DOCK gunner can only shoot what is within its normal range. Gunner B continues to attack normally but fires an additional shot toward DOCK gunner's target.
That is a bit odd... we're going to be investigating this one to see if we can work out what might be happening. Thanks for pointing it out