means what you do with Bishop (or Knight) in story mode or multiplayer will determine your character's growth. points to unlock the ever important weapons. Since all a player needs to do for the cosmetic accessories is play matches and earn general experience points, we'll disregard that for now.
Instead of earning points for weapons (like 4800 points for three ranks), players now unlock weapons and uniform pieces separately. Point System is a far departure from the old rank up system in Rainbow Six Vegas.
Using the marker, you can even proceed to shoot through wooden doors to gain assault point by killing the terrorist through cover. This enchanced reality comes in really handy when you want to get a drop on the enemy before they have a chance to shoot back.