halo 3 question about ranking up.?

[Stephen Lake]

this question may seem geeky because i play halo 3, but i am a rank 30 in lone wolves on halo 3, i don't know how i got it but i did, i say that because i suck at non teamwork games, but i'm a 18 in team slayer play list but i'm good at it, it may be because i dont play it as much, that may be the reason but i always rank down when i lose but never rank up when i win, any explanation for this?

 

[Austin]

Yes you have to win like 10 games before you move up a rank but it is hard because if you lose even 1 match you rank down.