By Halberd

Here's a 1000 pt army that should work well against Space Marines. I haven't tried it yet though. The thinking behind it is - Big Guys. 

HQ -
Hive Tyrant - Adrenal glands (WS and I), enhanced senses, extended carapace, toxin sacs, warp blast, scything talons.

3 Tyrant Guards


Elites -
1 Lictor

3 Warriors - Adrenal glands (WS and I), toxin sacs, extended carapace, scything talons, rending claws, leaping


Troops -

19 Attack gaunts (basic with leaping and scything talons) - Hive Node mutation

19 Spinegaunts (basic gaunts w/ spinefist) - Hive Node mutation


Heavy Support -
Old One Eye

1 Zoanthroape - Warp blast

Well the thinking behind it is Big Guys. That means it has really hard monstrous creatures. This works well against Marines because they have a tough time killing the big brutes and they get mangled when fighting your monsters.

The Tyrant, Old One Eye and the 3 Tyrant Guards should all go in one brood. This means an impossibly hard combat unit should they get sidetracked whilst heading for the main Marine lines. Old One Eye is just there for protection.

The enemy won't know what to shoot at. They could waste their time shooting at your Big Guy brood, but really, what's the chance of them inflicting serious harm? They might kill a couple of the Tyrant Guards but the Tyrant can manage well without them. Equally, it will be a waste of time for them to shoot at the relatively harmless Gaunts. Killing the Warriors will not have much effect since the Gaunts have Hive Node mutations.

At a convenient point, Old One Eye should split away from the brood and head for any armoured vehicles - tanks, dreadnaughts etc.

When Old One Eye breaks away from the brood, the enemy will not have a clue what to shoot at at all. Even if they do shoot the old Carnifex, he's very tough and regenerates anyway.

The Attack gaunts and Warriors will charge on turn 2 usually, swamping the enemy and preventing them from firing. This is vital for your Big Guys.

The Zoanthroape is just a distraction really. It might take out a Marine or two, or a Dreadnaught. But it probably won't. It's just there to attract fire from foolish Marine players.

Finally, the icing on the cake comes - the Lictor. Just when your enemy is swamped down by Gaunts and being trampled on by your Big Guys, and thinks things can't get any worse, the Lictor pops up out of nowhere and joins the slaughter. Then, when (if) they manage to overwhelm it - bang! it disappears into the undergrowth once more... only to charge in again next turn!

Well, it looks good in writing, but I can't really say how good it is until I've tried it. Feel free to try it out.