As opposed to the commando, who's turret is a computer aimed monster, the assassin seems to have a design brief to be as skill based as possible. You get a better zoom, but no auto aim. Maybe your hologram distraction explodes, but that's if you drop it near enemies. It's kinda like a polar opposite.
More satisfying gameplay - in single player. But I'm not sure what it's like to struggle while the commando drops a turret, throws a homing grenade and then sits behind a crate and lights a smoke.