While playing coop with friend I've noticed that even if I set difficulty to 'Realsim' the number of opponents is not proportional to the number of people playing the game. Sometimes the ratio of players vs AI is too excessive (I mean 1:30 +).

Is there a possibility to tweak this number (some kind of a config file etc.)?

Maybe instead of choosing difficulty (normal, hard, realsim) a better solution should be to rely on diifculty settings defined by user but allow him to specify the number/ratio of opponents?

Keep up the good work!