Bloodsport vs Frank Castle

Classic version, that shot Superman with a kryptonite gun.

Castle has as many weapons as he can carry.

Bloodsport wasnt an actual Soldier

He was delusional.

His any weapon gimmck was impressive, admittedly.

But a move like this would just piss Frank off...

...and unlike Supes, Frank would take (and make) a headshot.

Still this is a featureless environment, so, advantage Bloodsport, in that he can pull out heavy weapons.
But
Skill, experience, cool head under pressure (and the win) goes to Frank.

Look at those guns though. Big ass guns.

Castle wins.

Will be like a quick draw and who is more accurate.

And Castle will be that man. Bloodsport IIRC wasn't even a soldier but a civilian.

I think the second bloodsport will put a better fight, but he will still lose in the end.

Frank Castle wins this.

Yup. Pretty big.