I need help in Halo 3

I'm stuck at 43 and I'd like to get 50.

I'm 43 in Team Slayer.
and
I'm 38 in Team Doubles.

If anyone is kind enough to help get me 50 skill it'd be much appreciated, I don't have much to give except a crappy Runescape Pure.

I've heard Antman #2 is quite good at Halo, so maybe he could help me! I don't know though, thanks guys!

 

Heh, I havent played Halo in god knows how long, but im a 47 in lone wolves, and I think a 36 in DT (dont play it that much), 40 in TS. Maybe me, you and maybe antman could do TS or something