What is a Heavy Melee Attack in Black Ops 7?

Call of Duty: Black Ops 7 players have their fair share of challenges, but one that might have players stumped is the one that tasks them with getting Heavy Melee Attacks. This challenge pops up a few times in Black Ops 7, often as a Special Camo challenge, along with also showing up as the Melee Challenge in Multiplayer for the Illicit Cargo Event. For those unsure of what a Heavy Melee Attack is and how to effectively farm kills with it, here is your comprehensive guide.