Primary Gunfighter — Take one more attachment for one's primary weapon. Can be selected several times in Black Ops III to have even more attachments, though this only works on next generation consoles or PC versions of Black Ops III. Last generation consles can only select it once per class.
Secondary Gunfighter — Take one more attachment for one's secondary weapon. Can be selected several times in Black Ops 4.
Overkill — Use a primary weapon as one's secondary weapon.
Danger Close — Take a second Lethal. Not available in Black Ops 4.
Tactician — Take a tactical grenade in place of one's Lethal. Adjusted to take a second Exo Ability in place of one's Exo Launcher in Advanced Warfare. Not available in Black Ops 4.
Perk 1 Gluttony — Use all three perks slots to select perks from Perk 1.
Perk 2 Gluttony — Use all three perks slots to select perks from Perk 2.
Perk 3 Gluttony — Use all three perks slots to select perks from Perk 3.
Underkill — Replace the primary weapon with any secondary weapon not in use.
Primary Operator Mod — Unlock the Operator Mod slot for the primary weapon. Not every primary weapon has its Operator Mod.
Secondary Operator Mod — Unlock the Operator Mod slot for the secondary weapon. Not every secondary weapon has its Operator Mod.