Here 'tis on Vimeo:

https://vimeo.com/233559263
Password: TFA

@Mala: The line was originally “Without the Republic fleet, we’re doomed”, but it was replaced with “This is a catastrophe” because the Resistance base is still supposed to be hidden at this point in the edit, and thus not a target for the weapon. One could make the argument (and I think I did) that 3PO’s statement could mean “Without the Republic fleet, we (the Resistance attack ships) are doomed”, but that might be confusing.

This version makes clear that the Resistance knows that the First Order is targeting the Republic, and also suggests that under other circumstances, the Resistance would have the backing of the entire Republic fleet. Since there’s so little mention of the Republic in the original film, I worry about taking out any more. ‘It’s the Republic! The First Order, they’ve done it’, and ‘Finn’s familiar with the weapon system that destroyed the Hosnian System, he worked on the base’ were always going to be gone, so these lines are an endangered species of sorts.