Gamer has been removed
This is part of The Signal DLC.
Kill the TVs with the Flare Gun and Flares. While you're in the apartment, use a Flare to make the TV go through the wall and then jump down and immediately fire your Flare Gun into the TVs. Continue outside and you will see a boat crash on the dock. When this happens, pull out a flare and drop it, then use the Flare Gun to take out the shadow. If done right, you will have the achievement hen the boat disappears.