Alright, this list was cobbled together as an anti-horde list but seems to pack enough punch to step-up to anything not Necron or Smurf. Even then I think it might do alright... Regardless, I wanted so advice on whether it may need to be streamlined or buffed up or what-not. So here's the list along with a basic explanation of why I included each unit:
HQ: Chaos Sorcerer - Doombolt, Jumppack
Wanted him mobile to support my main troops while not really engaging any enemy on his own.
Troop: 8
CSM
These are mainly to screen the Oblits and provide massed bolter fire to hold the flanks.
Troop: 8
CSM - Melta, Rhino w/Havoc Launcher
Again, mostly supporting the main assault troops while the Rhino wreaks Havoc... get it?

Threw the Melta in there to give them a leg up in case some jack decided they looked tasty.
Elite: 8 Chosen - AspCh. 2xMeltas
A fairly cheap and effective infiltrating unit to block other infiltrators, assault vehicles and eliminate enemy big'uns.
Heavy: 8 Havocs - AspCh w/PwrFst, 4xFlamers, Rhino w/Havoc Launcher.
My main assault force. They should rip through hordes and be able to engage any light armour troops on the field. As they are to be my front line I outfitted the champ with a
PF to keep the big'uns from slaughtering everyone else.
Heavy: 2 Obliterators
Obviously these guys can suit a range of needs to help against any unforseen problems that might arise.
It's my personal weakness that I gravely dislike being horribly outnumbered on the field of battle; I tend to play way too conservatively at that point. So I prefer larger troops units and other massed bodied units that put feet on the ground. I know this can lead to a crippling lack of specialized firepower but hey, it's me. That's why I could really use your comments and critiques.
HOWEVER, do not expect me to simply take what you say at face value. I've found more than one opponent quaking in his booties when he sees nearly 35 marines and such on the board at this point level and it's been a fairly effective psych tactic for me. So I'd also like some explanation as to why you'd change whatever you think needs to be changed. It'll help me out in the long run when I'm putting together other lists and thinking about my opponents.
Thanks in advance for bothering to read my 1 out of these 5 billion threads.