None of the categories involving Battleship specify if it has to be played with original rules or if options like "salvo" and "superweapons" can be chosen. Are runs with different rules permissible or do they have to be submitted with original rules only?

I think I may have figured out the answer to my question, just want some clarification before submitting runs with different rules. I see all the games have "Original" and "Remix" categories, so clearly runs with original rules go in original.

But, for "Remix" categories, are there any restrictions on the rule alterations? For example, can runs with both salvo and superweapons be submitted as a remix run?