Ok, so I got a player who's a Devastator, maybe it's not leaping out at me by reading the rulebook, but what really is the draw back for being a devastator? A heavy weapon that takes just one full action to brace? Oh noes. I'd like to get some type of challenge to the group, but with a devastator, hordes and most enemies don't stand a chance under one round of fire.
Is there a weakness to Devastators? If you could think of an encounter that puts the heavy weapon marines thru, what would it be like?