Kill 4 enemies within a single instance of Focus

Focus is a skill you need to unlock from the combat skill tree. This allows you to slow down time. There are also upgrades to this which will allow you increase it's duration and to slow time further. To start and stop focus, you hit R3. while under the effects of a single Focus you will need to kill 4 enemies. You will need to have 4 enemies relatively close together to pull this off. An enemy can be either a gang member or a cop in pursuit. If you want to get this on a main story mission, it's possible (credit to ReverendSID for the tip):



There are two ways to get this easily at any time while you're playing if you don't get it during the story:

- Get the cops after you and when at least two cop cars (2 in each car) arrive to your location, use focus and shoot them. You can shoot them through the windows.

- The other way, in similar fashion, is to place down IED's in a location where you know two or more cop cars will pull up to. When the police arrive, activate focus and immediately set off the bomb. You'll see this method in the video below as I lure the cops just outside Navy Pier in the Mad Mile. This will also unlock Black Hat Trick as well