I love the multiplayer. I've not played something as fun or unique in a long time.
One example
one team are the assassins the others are targets. The targets have to basically hide and act like NPCs and blend in with the crowd. The assassins to some extent do also so you can't tell who is an assassin and who is a NPC. The assassins get a radar which gives the rough direction/location of the target so you could be standing in a group of targets hiding and the assassin might kill the wrong target this disabled him from attacking for 10 seconds then you can knock them down and stun them give it toes and live.
You can get perks like disguise yourself as a different char, smoke bombs, run faster etc.
It's a lot of fun. Much better with a xbox controller imo.
This, and the SP is bloody awesome.
DRM or not, must buy.