I've prematurely gushed over Just Cause 2 for a few months now and can now attest to the absolute fun I'm having with it. There's way too much to do, so it definitely feeds A.D.D. tendencies. Whilst flying to a location on the other side of the island, "Ooo hey, that boat looks fun!" or "Let's crash this into that bridge while climbing onto a car that's attached to another car!"
It's really that silly and features so much more than ever expected. And to get the hang of base jumping and seeing some other achievements, I've resorted to faithful YouTube submissions (which also feeds A.D.D. tendencies). Which is how I found the video below.
-- "In 1945, peace broke out."