RE 5 Versus?

Does any one but me feel that RE 5 isnt built properly for deathmatch style gameplay? Why cant you move while aiming or shooting? Why cant you dodge or roll? Why cant you melee without first shooting the guy then waiting for a prompt? And as much these things bother me, I cant stop playing! I have also noticed that when joining a game from other countries, when they see you are American, they will remove you from the session right on the spot. Isnt that some shit!? Also people that are supposed to be your "Teammates" will go off on thier own little adventures and leave you to die. Go ahead and try to talk strategy, they are not wearing a headset! Has anyone else experienced this or is the whole world just out to fuck with me? Dont be afraid to comment!           love you, BYE