In 0.9.9.7, there seems to be a sort of LOS issue with aiming and firing a weapon.
When Im firing around corners of pillars, sometimes there's a gap in the firing sight. I pushed a barrel into that "missing" square and fired repeatedly using a pistol, and it never seemed to hit the barrel.
Moving the barrel to the targeted square ensued a hasty explosion.
Fire -- Choose target...
You see : out of vision
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Patrick Armor : green armor [1/1] (40%)
Health: 97% Exp: 3/53% Weapon: chaingun (1d6)x4 [40/40]
cautious Phobos Lev3
With barrel:
Fire -- Choose target...
You see : out of vision
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Patrick Armor : green armor [1/1] (40%)
Health: 110% Exp: 3/55% Weapon: chaingun (1d6)x4 [20/40]
cautious Phobos Lev3