Ok this one is pretty hard - mainly because I don't remember much about it and I've been looking for it last few years - no results. It was 90s space adventure cartoon about a crew of a space battleship, it had lasers, pseudo lightsabers and stuff. The spaceship itself had a main turret with multiple barrels - rendered in early 3D, like space battles - and every barrel was facing different direction. I know its not much but I mostly lost all hope of finding it, so it has to be super-obscure.
Do you remember the network? What country did you see it in?
https://youtu.be/1t-9bHhuDUg
Close, but it was a 2D cartoon with traces of 3D animation. It aired in 1999-2002(?) in polish TVN station
Try looking through these
https://en.wikipedia.org/wiki/List_of_science_fiction_television_programs_by_genre
Or just keep looking through intros on youtube until something shows up in the related video column.
Do you remember anything about the characters?