if the game doesn't feel right with you just return it if you can simple as that don't given to the hype and stuff
another thing the reason why there is a cover system in SP but not in MP is that in SP you got a more of a liner gameplay where enemies come from one side only on the otherhand in MP the game play is more of a 360 degree meaning enemies come from all sides front back right left up down and in between
and tbh you are partially to blame for this because if have been paying attention developers many times stated that the cover system is SP only and the online wont have it
just do what is comfertible for you if you don't enjoy the game it's fine just don't give much attention to any fanboys on any console because they are next to useless when it comes to these sitiuations
