Hi, i wanted to contribute with my own save of Dead or Alive 6.
I liked this game and maybe this will help you getting the platinum, here are the details.
A Note and Warning:
If you want to make this look legit, play the game first!
Start the Tutorial, Combo Challenge and go for 10
in DOA Quest mode for there trophies. 
There is also the online trophies for this game, not sure if any will pop using this save.
Its possible that you might get some trophies to pop, but haven't been able to test it so feel free to report back.
Also played the Deluxe Edition, there could be issues with the save but it should be okay since its just cosmetics.
A Fighter is Born (Completed all lessons in Tutorial)
From the main menu go to Training.
Then Tutorial.
When you open the tutorial your on lesson 40, just move down and you will be back on lesson 1.
Left 2 lessons open, lesson 1.1 Advancing (just move forward) and lesson 1.2 Retreating (just move backwards).
Exercise Newbie Trophy (Completed Command Training for a single character)
From the main menu go to Training.
Then Command Training.
Select character NiCo (click name to see who this is).
You need to complete 1 more command training, i believe its already on the training that you need to do.
Just hit R1,R1,R1,R1 and you should be done.
Unchallenged Champion (Completed all Combo Challenge lessons for a single character)
From the main menu go to Training.
Then Combo Challenge.
Select character Diego (click name to see who this is).
Also left 2 challenges open, for number 1 (press forward twice and right away triangle).
For number 2 (just hit R1,R1,R1,R1 and you should be done).
Training Hard (Used Free Training mode for 1 hour)
From the main menu go to Training.
Then Free Training.
Just start with any character, if needed i used Kasumi and Tina (click names to see who they are).
After starting the training you can quit out, you should get the trophy (needs testing).
Milky Way (Received 100 in DOA QUEST mode)
Total number of is 97, so you can try quest number 038 and get all 3 or just complete numbers 038,040 and 041 for 1 clear the quest.
Or any other quest you feel comfortable with.
With no further instructions here is the save file.
For anything that i have missed, forgot or you did some testing with the save feel free to comment.
If someone asks for another region, sadly i cannot help you.
I hope this contribution to this site can be of use.
Your welcome!
I liked this game and maybe this will help you getting the platinum, here are the details.
A Note and Warning:
If you want to make this look legit, play the game first!
Start the Tutorial, Combo Challenge and go for 10
in DOA Quest mode for there trophies. There is also the online trophies for this game, not sure if any will pop using this save.
Its possible that you might get some trophies to pop, but haven't been able to test it so feel free to report back.
Also played the Deluxe Edition, there could be issues with the save but it should be okay since its just cosmetics.
A Fighter is Born (Completed all lessons in Tutorial)
From the main menu go to Training.
Then Tutorial.
When you open the tutorial your on lesson 40, just move down and you will be back on lesson 1.
Left 2 lessons open, lesson 1.1 Advancing (just move forward) and lesson 1.2 Retreating (just move backwards).
Exercise Newbie Trophy (Completed Command Training for a single character)
From the main menu go to Training.
Then Command Training.
Select character NiCo (click name to see who this is).
You need to complete 1 more command training, i believe its already on the training that you need to do.
Just hit R1,R1,R1,R1 and you should be done.
Unchallenged Champion (Completed all Combo Challenge lessons for a single character)
From the main menu go to Training.
Then Combo Challenge.
Select character Diego (click name to see who this is).
Also left 2 challenges open, for number 1 (press forward twice and right away triangle).
For number 2 (just hit R1,R1,R1,R1 and you should be done).
Training Hard (Used Free Training mode for 1 hour)
From the main menu go to Training.
Then Free Training.
Just start with any character, if needed i used Kasumi and Tina (click names to see who they are).
After starting the training you can quit out, you should get the trophy (needs testing).
Milky Way (Received 100
in DOA QUEST mode) Total number of
is 97, so you can try quest number 038 and get all 3 or just complete numbers 038,040 and 041 for 1 clear the quest.Or any other quest you feel comfortable with.
With no further instructions here is the save file.
For anything that i have missed, forgot or you did some testing with the save feel free to comment.
If someone asks for another region, sadly i cannot help you.
I hope this contribution to this site can be of use.
Your welcome!