User blog comment:WarBlade/Full Article Templates/@comment-1618941-20140417062417/@comment-3312380-20140417180153

Good point on Mal, although it doesnt need to be that specific. Mal can be an "enemy (Borderlands 2)" and a "NPC (Borderlands 2)". There could be a mission clarifier field for any characters first appearence (being the mission that you are on when the character appears). A boss could be a type of enemy (as you suggested) or it could be a character type as well.