This has big Lethal League Blaze energy.

I think that Marine as a fighting game character would be more focused in shooting and attacking from afar that going close in melee like in this image, both because she is a pirate and her low stamina.

Yay... said:

I think that Marine as a fighting game character would be more focused in shooting and attacking from afar that going close in melee like in this image, both because she is a pirate and her low stamina.

She could be a hybrid like she uses flintlocks or a blunderbuss and switches to her cutlass depending on her range

She could use an ammunition system like Aigis/Aegis in P4A/P4AU. Or some similar system with a "losing steam" gimmick.
She starts the match being above average in strength but as the match continues going, or if she's wasteful with her more powerful skills, she starts losing a lot of her more useful skills and becomes below average.
She's basically a pure rushdown character who needs to win quickly or she's more likely to lose. It's not impossible for a "depleted" Senchou to win, but it's an uphill struggle against characters that maintain their power level throughout the fight.

I wonder for senchou's final smash/last word/ultimate attack would be that she jumps into her ship, and fires the cannonballs, potc style?