i always and i mean ALWAYS try and get my chaos marines into close combat with units that i know they can rape, such as the eldar, tau or imperial guard, and having them get massecred before they even reach them. i even have terminators and two obliterators to lay down covering fire but i usually get too caught up and never use them for that damn purpose. thats why i have daemons now!! can anyone say meatshield!
Here is the beginning of my fluff for my Iron Warriors Eighth Grand Company https://www.heresy-online.net/forums/...ad.php?t=51842
"A fortress is a living thing: the commander its brain, the walls its bones, the sensors its eyes and ears, the troops its blood, their weapons its fists. This tells us two things: If one organ fails, the whole dies. And if the whole dies, no single organ can survive alone."