I have seen photos of a huge wargame and want to revisit it. But have been unable to find it so far...which is where LAF members come in

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It was a multi-player invasion game and I think was 40K based. I have a vague memory of it being called Ork-inawa or some similar WW2 pun. It involved at least 7 airships based on conversions of the Disney Atlantis submarine, and Orky bombers, as well as land and naval forces.
As I say it was a colossal board absolutely full of terrain, buildings, troops, and equipment so must have been the efforts of several gamers. There was definitely a large river/small sea splitting the board lengthways.
Does anyone else remember this. I think it may be 2-4 years ago. All my Google Fu has been futile,,,can anyone assist my failing memory.