Dalian what is that on the side of tanker at end of vid?

WTF is that on the side of the tanker at the end of the vid? are those parts for Bofor 57 mm naval guns? looking around I am seeing retro fitting ?I think, tankers with pipes curved which strikes me as something you would do to fit navel guns , curved ends such as you would have for short take off jump jets, markings where guns would go r helicopter pads square shaped craft with covers such as something like vehicle ferry's converted into shock troop carriers things that look like they could be used for fast attack river boats ad such. mostly trying pass off as normal shipping . And it is lots I am starting to think that across the country they have enough to swarm the sea of japan and philipean sea regions and then push on to the south china sea trade routes in short order if they are stopped in their tracks at the first showing. I am not liking what I am seeing. it is starting to remind me of pictures of Britain leading up to d-day