There should be like an infect option like set up part one then when ur ppl r in set up part 2 with the instructions

Cam1899 wrote ok so first go into a private match by yourself then find the infection menu and select "step 1" and it will lag you out then go to the private match again and invite them then they back out go to split screen and start it and when they lag out you invite them back and you change the map to whatever you want the goto the infection menu display instructions then after it finishes select start infections (they should be spectating you while you start the infections) (as in they shouldnt be able to spawn"

Cheers man, that worked:D i'll infect you in about an hour, just gotta go somewhere, leave your gamertag

invite Team Dust when you start infecting

If you do find this please can you invite me, GT - Jackkoh, thanks