Taking on monoliths with SM
Having a spot of trouble with monoliths. How do you take these monsters down? Almost everything you can take for SM needs a 6 to glance. Lascannons do slightly better, with Lysander seeming to be the only guy who can reasonably do anything against them. Right now I'm running a melta/thunder hammer list with vulkan, but a single monolith can just laugh at anything I can throw at it.
Other than just ignoring it and going after their troops, is there anything you can do?
Just to make sure I have the rules right, they're AV14 all around with a rule that doesn't allow extra dice to be rolled for pen, right?