Current behaviour: Flaming Fist Battle Wizards (FLAMWIZ.CRE) are treated as 1st-level casters when casting mage spells. As a result, the sizeable complements of Magic Missiles and Chromatic Orbs on which they rely are rendered eminently harmless.
Suggested behaviour: Since FLAMWIZ.CRE is listed as level 7/7/1 in NearInfinity, I would recommend the wizards be treated as 7th-level casters, instead.
Games affected: BG1, BGEE.
Notes: This bug remains an issue as of Build 0629.