This is my anti-marine list and it works pretty well.
+ HQ +
* Archon (145pts)
Agoniser, Combat Drugs (Combat Drugs), Phantasm Grenade Launcher, Shadowfield
* Haemonculus (60pts)
Liquifier Gun
* Haemonculus (60pts)
Liquifier Gun
+ Elites +
* Incubi (224pts)
7x Incubi
* Raider
Dark Lance, Enhanced Aethersails, Grisly Trophies
* Kabalite Trueborn (178pts)
* Raider
Dark Lance, Flickerfield
* 4x Trueborn
4x Blaster
+ Troops +
* Wracks (Troops) (130pts)
Liquifier Gun, 5x Wracks
* Venom
Flickerfield, Grisly Trophies, Splinter Cannon
* Wracks (Troops) (130pts)
Liquifier Gun, 5x Wracks
* Venom
Flickerfield, Grisly Trophies, Splinter Cannon
* Wyches (213pts)
Shardnet and Impaler
* Hekatrix
Agoniser
* Raider
Dark Lance, Enhanced Aethersails
* 9x Wyches
9x Haywire grenades
* Wyches (213pts)
Shardnet and Impaler
* Hekatrix
Agoniser
* Raider
Dark Lance, Enhanced Aethersails
* 9x Wyches
9x Haywire grenades
+ Heavy Support +
* Ravager (115pts)
Dark Lance, Dark Lance, Dark Lance, Flickerfield
* Ravager (115pts)
Dark Lance, Dark Lance, Dark Lance, Flickerfield
* Razorwing Fighter (165pts)
Dark Lances (x2), Flickerfield, Monoscythe Missile, Monoscythe Missile, Monoscythe Missile, Monoscythe Missile, Splinter Cannon