Well I've been toying with the idea of a competative Slaanesh CSM infantry list. Basic idea is an Emperors Children army with 0 tanks, and loads of fearless marines. I made this list fairly quickly after glancing at a marine book for the first time, so I am sure it is rife with things that can be improved. Anyways, heres the list I was considering:
Lord + Darkblade + Bolt Pistol + Deamonic Mount + other deamonic gifts to pump him to 130 pts. I don't see the slaanesh steeds getting a lot of play, but it would be a great model to include in the army. Is the reason because he starts off the table in escalation (the preferred type of play with this army)?
6 Marines + MoS + Free Champion + Power weapon + Bolt pistol + 4 Sonic blasters + Blastmaster
6 Marines + MoS + Free Champion + Power weapon + Bolt pistol + 4 Sonic blasters + Blastmaster
6 Marines + MoS + Free Champion + Power weapon + Bolt pistol + 4 Sonic blasters + Blastmaster
6 Marines + MoS + Free Champion + Power weapon + Bolt pistol + 4 Sonic blasters + Blastmaster
6 Marines + MoS + Free Champion + Power weapon + Bolt pistol + 4 Sonic blasters + Blastmaster
6 Marines + MoS + Free Champion + Power weapon + Bolt pistol + 4 Sonic blasters + Blastmaster
6 Havoks + MoS + Infiltrate + Free Champion + Power weapon + Bolt pistol + 2 Sonic blasters + 3 Blastmasters
6 Havoks + MoS + Infiltrate + Free Champion + Power weapon + Bolt pistol + 2 Sonic blasters + 3 Blastmasters
6 Havoks + MoS + Infiltrate + Free Champion + Power weapon + Bolt pistol + 2 Sonic blasters + 3 Blastmasters
So the list boils down to:
55 fearless marines, 15 Blastmasters, 30 Sonic blasters, 9 Champions, 1 Lord, 1699 points (or close enough)
I had a few issues with the list:
1) Can the Blastmasters reliably deal with vehicles threats? I like my odds against Falcons, but LR crusaders get more play around here. Secondly, what options do I have for dealing with Crusaders and Monoliths?
2) Does the list have enough firepower to put down or deal with Godzilla nids? We dont always play escalation around here, probably only 25% of the time. I like the bulletcount, but it lacks AP2 weaponry, and even AP3 weaponry.
3) Do I have enough close combat punch? The lord was low on wargear, as I made him last, and none of the champions have Daemonic Strength. Would it be worth dropping one of the troop CSM units to get a bit more wargear? I wouldnt mind upgrading to a KoS either, if its worth it.
4) Should all of the units have Infiltrate, or is that a waste of points? (I cant remember if it is even an option for non-Alpha Legion)
5) The army is slow. I can't move 18" to aid an assault that is going poorly, except with the lord. I dont need to move much, but having the option is certainly handy. Would it be worth including some mounted daemonettes to counteract this problem?