Here are some pics of my World Eaters now that they are finished.
Here are all of them:

Here is the first squad:

The contmeptor and the terms:

The Captain and the 1st squad:

The Chaplain:

The second squad:

And Angron himself:

I'm glad they are all finished now (so I can buy another set - hehe) because I wanted to get them done and start playing with them. I don't have the Forge World rulebooks and trying to buy the army list books it looks like one is no longer being printed, which is a shame. Looking at a standard list for Chaos in 40K it looks like this force, minus Angron, so what you get in the box, is about 1100-1200 pts or could be more depending on what option you give them. I think I have it configured for about 1125 points without any "invisible" upgrades.
That is just for everything being used as standard so cataphract termies just counting as termies and same with the dread as just a regular dread.
At first I was thinking about using them against themselves using the Infinity rules and using the fire team rules from that. So basically four models would count as a unit.
The first scenario I was thinking about doing would pit the Chaplain and one squad that remained loyal to the Emperor against the rest of the force as he tries to escape and they try to hunt him down.
But I'll probably just end up smashing them into some Blood Angels or Space Wolves or even some aliens first. We'll see.
More pictures are here:
http://imgur.com/a/ppqlr