[prairiehawk]

I was looking at the tables in the back of the SM codex and the rulebook (both current ed) and noticed some units have slightly different stats between the two. Which book is correct?

 

[the cabbage]

The most up to date wins, so in this case the newest codex over the BRB.

Worth taking alook at the errata and faq though.

 

[darklove]

Codex always trumps BRB unless an official errata has been published by GW.

 

[KingOfCheese]

Codex.
The stats for the marines in the rulebook is based of the 4th ed codex (which was current at the release of the 5th ed rulebook).
The 5th ed codex was released after the 5th ed rulebook.

 

[Tim/Steve]

In practics the back of the BRB is just a quick summary, but codex are always correct... but I would love to play against wave serpents with front armour 2