So i was gonna play multiplayer with all of my friends and then i discovered that i need patch 1.7 to connect to them (I was connecting through a software called "GameRanger"). I installed those patches and then tried starting multiplayer but then it didn't start! there was no error message either but just a command prompt like window popped up for a split second and then went away......so i was wandering if anyone could help me. If you know anything like that then please reply.
P.S : Not only me but all of my friends who tried this had this problem also i'm using a cracked version of CoD 4