User blog comment:Cpt Ventris/New as a commander/@comment-3212135-20101116000442

I don't use legion of the damned.

It really depends on the situation. A defensive one you want to dig in your devastators in static positions that allow maximum and overlapping field of fire

The Tac marines are flexible front line defense while receiving fire support from the devestators.

The assualt marines are your reserve and are used to break enemies or reinforce a weak melee point.

In offense You want to do the same with the devastators and advance steadily while firing with your tac. The assault marines are used for the same purpose in assault situations use them to reinforce a weak point in your assualt line or to bring a lot of pain quickly to finish the squad. you may want to center the axis of assault around the legion of the damned squad since they're so strong.

You're captain on defense I would keep free and use him to reinforce a weak point during melee but keep him behind cover so he doesn't go down until melee breaks out

on offense your captain should follow behind the main advance and do the same thing once melee breaks out

That's general tactics. If you're fighting tau be sure to use assault marines as the focus on assault and always get into melee. Chew the kroots up with ranged from the devastator.