Hi there i am returning in a new topic 
how are you all ? I would say my opinion in multi-player opinion and how would it work !
When should multi-player option available ?
After IA adds this. The multi-player option should be available when you accept contact request or the recruit accepts you contact request . You must unlock it it should cost 675 keys 
How should it work ?
After accepting request a message should appear after you click (create team) click on confirm ! ( only with features appear). Every day you login and one of you in team recommends to the other to join a mission. You can accept or decline that is you choice
How many players ?
Must be up to 2 players. You can manually create a team. Neither automatically nor obligation!
Thanks for InterAction Studios for making game interesting!