Best targets: IG troops, most eldar and Tau fire warriors/auxillaries, smaller Tyranid bugs. Anything with a 4+ or worse save, and lowish toughness. That will usually net you a kill per horror, which isn't too shabby.
Ok targets: Power armoured guys, (especially with T4) anyone with a cover save. Usually it'll get you about a kill per 4 horrors vs. power armour, kill per 2 horrors against a 4+ cover save. getting a little shabby, 4 horrors to kill a marine per turn. Still, if you're firing for a few turns, that can really cut into enemies.
Worst targets: Things with FNP, 2+ armour saves, or high T and good armour. Marine bikers, terminators, plague marines, larger Nid bugs. Don't even bother shooting at Nob Bikers.
So, work on taking out your best targets. Against marines, a herald can help, the AP3 makes all the difference. Against Plague marines, there are better things to take them out with, because they'll laugh off warpfire most of the time.
Hope that helps
It's all in the name.
Looking for a club in Brisbane, Australia
? Come and enjoy a game and a beer at our friendly club in a pub, Sunday nights from 6:30. All brisbanites welcome, don't wait, check out our Club Page on Facebook
for details or to organize a game. We play all sorts of board and war games, so hit us up if you're interested.
Update:From the 25th of May 2014 we'll be Meeting at The Junction pub in Annerley, opposite Ace Comics and Games
Still playing 40k, Warmachine and board games of all sorts!