Quick 1850 list Vs. Orks

Hello all,

I might be playing a game tomorrow against my buddies Ork army. The last two games he beat me pretty bad. He's been taking these lists with a massive amount of infantry. Usually something like three units of 30, some Bikes, Big Gunz, and a few other things. I think the list he would bring tomorrow is going to have a ton of bikes in it though, as he's been buying and converting a lot recently.

I'm hoping fear will help me out a bit, and that's why I took the AoM. I was thinking of trying to make some room for Torment Grenade Launchers on the Raiders but I've never actually used them before and was hoping to get some opinions on them. They seem like they "could" be useful against Orks but do they work out for people generally?

Constructive criticism is greatly welcomed.

Thanks,
Raz

Anti Ork (1851pts)
Dark Eldar: Codex (2014) (Combined Arms Detachment)
HQ
Succubus
Archite glaive, Haywire Grenades, Splinter pistol, The Armour of Misery

Troops
Kabalite Warriors X4
5x Kabalite Warrior
Venom
Splinter Cannon

Fast Attack
Razorwing Jetfighter X2
2 Dark Lances, 4x Monoscythe Missile, Twin-linked Splinter Rifle

Reavers
2x Cluster caltrops, 6x Reaver

Heavy Support
Ravager X2
Dark Lance, Dark Lance, Dark Lance

Talos
Chain-Flails, Twin-Linked Splinter Cannon
Talos
Chain-Flails, Twin-Linked Splinter Cannon

Dark Eldar: Supplement - Haemonculus Covens (Formation Detachment)

Formation: Grotesquerie

Grotesque X 3
Raider
Disintegrator, Enhanced Aethersails

Grotesque X 3
Raider
Disintegrator, Enhanced Aethersails

Haemonculus
Close combat weapon, Scissorhand, Splinter Pistol