ORIGINAL: Cheesehead
My apologies if this has been addressed, but this question has been bantied about on the WiF list and I was wondering how Steve plans to handle it.
About the original topic, Rounding, Rounding is defined in RAW 2.6 :
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These rules frequently require a calculation that produces a fraction. When you have to do this, round to the nearest whole number, rounding halves up.
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Rounding a negative number up moves you closer to zero. For example, if the fraction is -1.5, it rounds to -1.
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Even if HQ support is nearly not affected by this rule because HQ support is added / subsctracted to the other combat modifiers, and then the result is rounded, there is still an effect in Air to Air combat, where the result can be asymetric sometimes, as the example in RAW 14.3.3 shows :
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They calculate their combat values. Jeremy has an air-to-air strength of 6.5 (1/2 for the carrier plane) while Maria has an air-to-air strength of 4. Therefore, Jeremy has a combat value of “+3” (6.5-4, rounding to 3) and Maria has “-2” (4-6.5, rounding to -2).
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I must say that this is something that in my group of players we always have overlooked, as we have the habit of rounding -2.5 to -3.