The Chapter Tactics and Space Marine Chapter Tactics has been updated from Forgeworld. There are a few changes, but I have not seen anything majory. Of course it looks like the Red Hunters have been updated.
Here are the links you need to head on over and check out the latest on Forgeworld.
Space Marine Chapter Tactics
http://www.forgeworld.co.uk/Download...tactics-v2.pdf
Space Marine Characters
http://www.forgeworld.co.uk/Download...bupdate-v2.pdf