I thought the first one was fun, if a bit (or a lot) cheesy. I particularly enjoyed the Baroness chewing up the scenery.
This one looks okay, but almost too serious for the subject matter.
I think if it's a military show done in live action, it NEEDS to be serious. The action and stunts need to be plausible for the audience to even care. But having The Rock in the lead role and Bruce Willis tells me that there's going to be a wink at the audience at all times. Doesn't mean there won't be casualties though.
The first one was just stupid. 100% stupid. At every possible moment. Try explaining the story and highlights to someone and you'll end up going "you know what... nevermind."