ok let me try.... (thanks for the visual titus :-)
ok i think that gray fox would win because technology "pwns" all. every time he gets hit, he gets harder to kill, so in some point if Tatsamaru had some licks to gray fox, gray fox would definately KILL that Tatsamaru guy. .....come on, gray fox could even deflect snake's socom (his gun) from direct hit, you can only beat grey fox in a hand to hand combat, where it will NEVER happen because it is cool for him to use his sword!!
second of all that foo grey fox look WAY better that that other guy. Tatsamaru doesn't even have armor and he will get hit with his "bigger" sword. look at Tatsamaru, were is is sword?? yeah thats what i thought, he got NOTHING on grey fox :-P
here's my story (i got so much time right now i could write a book!! )
Tatsamaru not knowing who or what he is fighting, steps forward to take a closer look at him. not for long untill grey fox disappears to the night and confuses Tatsamaru. Tatsamaru thinking if it was only his shadow, looks around. Without letting Tatsamaru know, grey fox is RIGHT IN FRONT OF HIS NOSE!! Tatsamaru, with his keen sence, smells grey fox but doen't know if he should just hit "air". With a quick slice, Tatsamaru was able to hit grey fox slightly in his chest. grey fox, touches his wound and scrapes a good amount of blood to his figer tips. he licks it and welcomes the pain. grey fox thinks to himself, dam that guy has skills, even snake himself never made him bleed. so he takes precaution and makes his speed at two times his speed. Tatsamaru found grey fox slipp'in and slices him in his stomach.
Grey fox knowing that Tatsamaru learns of his speed, knows that he needs to do his final move.....a move that will take grey fox 110 percent of his energy and focus!! grey fox, who has found his center, starts walking towards Tatsamaru slowly. Tatsamaru, sees him in front of him and does a quick slash, but no!! grey fox has dissapeared and ended up right in back of him, Tatsamaru with his super sense turns around and does a quick slice, but again he is not there, then at his left,...then his right, then on his back ...untill he is just slicing air. he then finally realizes he is not around and looks upward and with surprise, sees him flying towards him with his sword upright ready for the kill. Tatsamaru, not knowing how he got up there, accepts the blow and gets sliced in half like frieza and trunks!! (dradon ball Z!! ) Grey fox lands on the floor and puts his sword away while Tatsamaru kneels down and descends in two!!
GRAY FOX: "VICTORY...........................is mine"
ps game over!!! O_o