[Mobhack]

Target aspect has no effect in these rules, only range at point of firing. Cannot think of any rule set that had any such calculation (tabletop or cardboard shuffling) bar some air-air game of the 70s where you had to fly missiles and planes in 15 second(?) phases broken down into sub-phases that was incredibly unworkable, our wargames club tied it about 4 times and gave up when you could only do about 4-5 15 second turns in an evenings play with about 4 planes.