The Best COOP game?

Call of Duty Modern Warfare is probably one of my favourites for multiplayer.

give helldivers a try you might like it, its really fun to kill each other

Try out Portal 2 coop mode; really gonna require teamwork and has some thinking. There are hard community-made maps out there too to attempt after the main story has been completed.

Destiny 2 is a good pve/pvp/coop game i recommend this game u can play up to 6 coop

Me and the fellas rotate between PAYDAY 2, Portal 2, Black ops zombies, and L4D2