Alright, here's one. Though in this particular case, I think the problem wasn't that it wasn't covered, but it didn't meet my intent in covering it.

Shooting out tires. The game, Spycraft 2.0.

You'd think this would be a viable tactic. Tires are pierced more easily than bulky metal. This is nominally covered by the "called shot rule" which lets you take a penalty to pick a specific part of the vehicle affected. However, the rule doesn't inflict this effect until after the damage save fails and doesn't take into account the tire's lower damage save.

To me, it seemed logical to use the wheel damage save instead of the whole vehicle damage save. So that's what I did.