Like a Quickscope, a Blackscope refers to a player in a video game using a gun with a scope of some kind (Generally a Sniper). The player then aim in with the weapon and before he is fully in the scope shoots and kills an enemy.
That blackatype has five baby mamas (or five children with different daddys if female), no job, possibly sells drugs, only listens to rap music, may be in a gang, lives off of welfare, doesn't read, and doesn't know anything about politics except Barack Obama. They have ghetto names and may qualify for every "you are an insult to the Black Race" award.