Pitying fools as hard as I can...
...and finally, it was a single picture of determining who had the least amount of cannons on the left, and two meteor strikes on the right.
The card is "combat zone".
I think you are misinterpreting here. That icon means to determine who has the fewest cannons overall, not on the left (the gun I think just happens to be pointing that way). Every forward facing gun counts as 1, every backwards or sideways facing gun counts as .5 (just like for Pirates, Smugglers, etc.).
Oh and yes, whoever does have the fewest guns takes the full penalty. If there is a tie, the person currently in front takes the penalty.