First of all, Abbadon is a beatstick. Don't let anyone tell you he cannot be competitive. Abbadon beats the face of nearly every other
IC in the game - though you want him focusing on the squads and not locked in a challange when possible. This is because you don't want to lose his attacks on a seargent, nor do you want him spawning or becoming a
DP. Just challange with your commander and not abbadon.
Lets take a look at your list.
Chaos Terminators x10
- Champ (Power axe)
- 9x power axe
- 4x combi melta
- 2x reaper auto cannon
- MoT
- VOTLW
462
If Abbadon is going to hang with this crew, you don't want to give them
VotLW. You should also drop the reapers. They are rather weak. I would also give 4 of them mauls and not axes -- to increase the versility of their threat.
I would even consider removing the
MoT. 310 points for a squad of them is very cheap for what it provides. Losing a 31 point model is a pain, losing a 46 point model hurts.
Chosen x9
- MoT
- IoV
- 2x melta
- Rhino
260
Chosen are awesome for
MSU. Your not paying for the champion, so they save 10 points. When your paying 10 of them, your 'discount' is less. Marking chosen is tricky -- I'm not normally keen on it. Your paying 26 points a model for those guys, and plague marines would be much better for the same cost! In a similar way, I'm not sure the icons are hot.
One of the strong points of chosen is that you can bring 5 special/heavy weapons. I would take 5-6 chosen. 2
MGs, and 1 flamer. The flamer is a 5 point squad upgrade and it gives you some good flexability.
Strategy
Like others, I'm not keen on starting with half your army off the board.
How sold are you on the terminators being in one large squad? It might be better to use 3 squads of 3 of them as deep strikers. This lets you apply pressure where you need it.
Abbadon can work very well in a squad of 20 normal
CSM. Add a cheap librarian to help accept challanges and to provide buffs. Noone will assault the
CSM squad because Abbadon will wreck their face, and its tough to dislodge 20 power armored models + 2 terminators. The 20
CSM will cost less than one of your chosen squads.
Have you thoughts about bringing a squad of cultists as your 'deck chairs'? 50 points gets you 10 guys that can start in reserve, run on the board and just go to ground on an objective.
For your other troops, how about daemons? 40 plague bearers / daemonettes would add some punch. You could also bring a greater daemon in leau of the sorcerer mentioned above. Greater daemons are extremely good beatsticks on their own right.