The use of swords (Dark Souls 3)

Good day! Play on the computer in Dark Souls 3 is connected a controller from the PS3 and actually choosing a sword (Giant sword normal) can't use it as a shield and there is no punch when you hit forward and then when he raises it causes more damage ( there are beats from side to side and super punch forward) that I can hit in the settings? Who knows what the problem is ( I watched the passing of the person the same sword and the same class and the difference in the face)