Here is a list for Chaos that I have been working on for a friend of mine based off the Night Lords, however it has kind of evolved somewhat to make a stronger and more efficient list.
Just about everything in the list has Chaos Glory or is fearless. This means an army that is not going to go anywhere anytime soon. They will have to be taken down and wiped out to a man in order to get rid of them. With Lash Princes, you are able to pull units into heavy plasma nests and tear them apart, or just sit them down in front a vindicator with its demolisher cannon. The Princes really should not be relied upon for close combat, however, they can do the job when it comes up.
The Chosen are set to infiltrate under most circumstances. Get them into cover with some good board coverage with their weapons, and should be a tough fire nest for opponents to crack. Break those transports and shoot them up as they approach to take on the chosen. There is a ton of firepower in these units.
Set up the rhinos to protect the vindicators early on. The two rhinos with chaos marines should be set where you want them. They are designed for long range shooting and objective holding when it comes down to it. The other two rhino's carry Plague marines with two meltas. These are your go out and grab someone unit. Two meltas in the plague marines and a rhino with a combi melta. Knocking out incoming land raiders should not be an issue.
The Havocs with 4 Autocannons should really make short work of light armor transports the entire game. They are backed up with the Chosens S7 weaponry, the Reaper Autocannons of the terminators, and I can't leave out the Vindicators huge S10 Lg Blast templates.
The terminators are there to provide a hail of S7 AP2 shots when they are needed. 8 combi plasmas will do their job when rapid firing into anything that needs dying. Not to mention that they come with power weapons, 2 chain fists, and 2 Reaper Autocannons. Keep them moving forward, hopefully in cover. They also come with Chaos Glory, so it will be a brutal unit for the forces of Chaos.
Really this list is not left wanting for raw firepower and durability.
2500 Pts - Chaos Marines Roster - Night Lords 2500pts
2x 1 Daemon Prince @ 155 pts ((C:CSM, pp. 32 & 92); Unit Type: Monstrous Creature; Unit Type: Jump Infantry; Wings; Mark of Slaanesh; Close Combat Weapon; Eternal Warrior; Fearless; Psyker; Lash of Submission x1)
1 Chaos Terminators @ 430 pts ((C:CSM, pp. 28 & 94); Unit Type: Infantry; Terminator Armour; Chaos Glory; Terminator; Deep Strike)
10 Terminator ((C:CSM, pp. 28 & 94); Terminator Armour; Power Weapon x8; Chain Fist x2; Combi-plasma x8; Reaper Autocannon x2)
2x 8 Chosen @ 234 pts ((C:CSM, pp. 27 & 94); Unit Type: Infantry; Frag Grenades; Krak Grenades; Power Armour; Chaos Glory; Bolt Pistol x8; Bolter x3; Close Combat Weapon x8; Autocannon; Plasmagun x4; Infiltrate)
2x 10 Chaos Space Marines @ 220 pts ((C:CSM, pp. 26 & 96); Unit Type: Infantry; Frag Grenades; Krak Grenades; Power Armour; Chaos Glory; Bolt Pistol x10; Bolter x9; Close Combat Weapon x10; Missile Launcher; Rhino)
1 Rhino ((C:CSM, pp. 42 & 96); Unit Type: Vehicle (Tank); Transport Capacity: 10 models; Access Points: 3; Fire Points: 1; Searchlight; Smoke Launchers; Twin Linked Bolter; Havoc Launcher; Repair)
2x 5 Plague Marines @ 180 pts ((C:CSM, pp. 38 & 97); Unit Type: Infantry; Blight Grenades; Frag Grenades; Krak Grenades; Power Armour; Mark of Nurgle; Bolt Pistol x5; Bolter x3; Close Combat Weapon x5; Meltagun x2; Fearless; Feel No Pain; Rhino)
1 Rhino ((C:CSM, pp. 42 & 96); Unit Type: Vehicle (Tank); Transport Capacity: 10 models; Access Points: 3; Fire Points: 1; Searchlight; Smoke Launchers; Twin Linked Bolter; Combi-melta; Repair)
7 Havocs @ 195 pts ((C:CSM, pg. 96); Unit Type: Infantry; Frag Grenades; Krak Grenades; Power Armour; Chaos Glory; Bolt Pistol x7; Bolter x3; Close Combat Weapon x7; Autocannon x4)
2x 1 Vindicator @ 145 pts ((C:CSM, pp. 43 & 101); Unit Type: Vehicle (Tank); Dozer Blade; Searchlight; Smoke Launchers; Daemonic Possession; Demolisher Cannon)
Total Roster Cost: 2493