The trident looks very plain it’s missing something.
I think that attachment like on the Tadpole and modules like in the sea truck would be a great fit to the design of the Trident.
Here some ideas of modifications and attachments to the Trident.
Modifications: Scanner room not just with a scan but also with a controllable drone camera that moves faster than the Tadpole but is very weak you can use it to explore, find and ping leviathans and more.
Attachments: A cannon attachment that could stun levaithans for 2-3 seconds by using high electricity blast. (Would be cool if it would be foldable and on top of the Trident)
there’s no official design or concept art for the trident sub. the community has made some based off of the low poly model that got leaked from the game files, but none of that is final, its early development. if you look at the original test fotage of the first subnautica game (back then it was called descend), the submarine is a big untextured rectangle there too.