HereForTheBeer: I haven't played, so in what ways is it considered bad: boring, wonky, broken, or something else?
For what it's worth, Ed Wood made a career out of unashamed bad-ness. One example of many...
Its not either of those, it just felt generic, therefore mediocre.
Austrobogulator: I feel like I would have really liked Spec Ops: The Line if it was actually enjoyable to play - for the most part, it was not.
Although, having said that, I enjoyed Surgeon Simulator 2013 - and I suppose you could consider that as having bad gameplay.
Ah! But we get to one of the points, it is bad on purpose, same way QWOP is. At least bad regarding controls.
Detlik: The game, while wonderful IS a mediocre shooter in a sense.
Cormoran: In what sense exactly? It seemed to play perfectly fine for me...
Nothing special, it just felt generic to me.