User blog comment:Crazy sam10/Black Ops 2 multiplayer changes leaked/@comment-1382861-20120611035640/@comment-1187559-20120611093851

Translation: How will weapon attachments unlocks work? Let's imagine I'm using the M14 EBR and use my points for ACOG, Suppressor and Ext. Mags, then get the perks Scavenger/Sleight of Hand and Steady Aim. Black Ops II is beginning to look good to me with all this news. The system could work better if you unlock more points as you level up.

Relatively easy to understand.