Plutonium

i want to change the mode once inside the server ... i play privately with friends... i am able to change between maps and other modes without dsr files
the only problem left are these modes

hi guys i have been playing cod mw3 mp but i am unable to find console command for a few game modes like
1.Gun game
2.Infected
3.Kill confirmed
4.Drop zone
5.Juggernaut
6.Team juggernaut

i am continuously trying to change to these game modes but i guess these commands are incorrect...Can anyone help me?