yes, i know what you mean .. sometime happen to me but sometime they're corner me also to the close side, i think is sometime about tactics behavior assigned to the team ,like the advanced tactics that are enabled without any settings via edit mode. (movement, forced overlap, closing the center, high-less pressing and so on)
dt 18 (the gameplay in few words) is a file on pc that contains a lot of this info but another part of that is written over the exe itself
over the console system i think is pretty the same, like
@Matt10 has explained some time ago about ATT/DEF behavior .
IMO real madrid has different hidden info inside his tactics compared with the Arsenal one , so also if you have the same disposal and players with the same overall/role/ability the two teams play in a different way.