Because Call of Duty was the first game to invent cooperative team based combat amirite?
Just because it is modern combat, and has a deathmatch mode does not mean its a ripoff of CoD. Kids these days know very little about games and just know CoD/Halo/Bf, and think that there is nothing else, and anything else is just a ripoff of their precious series.
Did you guys even watch the video posted? The game revolves around getting the points and completing objective. Not just mindless ADD circle fragging.