I am not sure if this counts as a 6th list or not. I think I am out the loop
atm!

. List is below and here is a full link to my blog giving the full run down:
http://www.imperiusdominatus.com/2012/10/army-lists-chaos-space-marines-foot.html
Chaos Space Marines 'Foot Horde' - 2,000 points
HQ
Dark Apostle - gift of mutation & mark of tzeentch
Elites
10 x Chosen - 4 x plasma guns
10 x Chosen - 4 x plasma guns
5 x Chaos Terminators - 5 x pairs of lightning claws, mark of slaanesh & icon of excess
Troops
30 x Chaos Cultists
15 x Chaos Space Marines - 2 x plasma guns
15 x Chaos Space Marines - 2 x plasma guns
Fast Attack
Heldrake
Heldrake
Heavy Support
2 x Obliterators
2 x Obliterators
2 x Obliterators
Total: 2,012
Summary
List has 92 infantry models, that's quite a lot of 3+ armour saves! It is packing 12 plasma guns from the normal troops and whatever the Obliterators can bring.
Tactics
Ok, note the list is 12 points over. I am sure the loss of a couple of Cultists can sort that out.
You can place the 2+ armour save units at the front, they can absorb fire power or place the Cultists are the front and protect those more vulnerable units.
Basically the entire list moves forward unleashing dakka; Oblits use lascannons, then switch to multi meltas, then plasma cannons could be a option once transports are busted open. If serious armour is around then deep strike them. Once you're close enough, go on a mad 'un and assault; you really want those Cultists in there as they have 3 attacks each on the charge and are re-rolling to hit

.
Terminators I would more than likely deep strike. You do not want them foot slogging really as they are easy to pick off with low
AP weaponry. Get them to deep strike and assault camping units i.e Long Fangs smaller weaker units which they can easily chop up.
Heldrake of course is anti flyer, again I have played with one, but I am not sure on the hades or flamer. I think I would take hades in this case as it gives the list a bit of punch and your own chaos horde is anti horde.