Call of Duty: Ghosts aimed to be a realistic shooter, with gunfights not lasting long and now relying on more than just skill. You can't really turn on people anymore. The maps are larger and are vertical, too. Assault rifles/snipers are competitive now, but so are SMGs. I.E.D.'s are annoying, so use sitrep or blast shield. Watch out for guard dogs, too. Only the first on the flag gets a point.