TEKKEN TAG TOURNAMENT 2

Okay so here is a pretty productive way to go about this;
1) Go into "OPTIONS" and then go into "CONTROLLER SETUP" and change your right trigger to LP + RP (just in case you don't know how, hold down and press the d-pad to the left until you get LP + RP) then exit.
2) Go into SURVIVAL and make sure you select "TAG" and not "SOLO" because i found it easier to do with two characters as opposed to one. Select Jack-6 (or Prototype Jack it doesn't make a difference) for your first character and Angel for your second.
3) Now for your strategy you want to rely on Jack-6's "Diamond Reamer" (press + , ) to start with. Jack will hit them over the head first and then throw a straight punch, that when connects, knocks the AI back a nice distance. Do this move until it connects, and when it does, quickly tag in Angel and spam her "Inferno" (this is why you change the trigger) which is a laser beam move from across the room. You want to time this move so as the AI is getting up, they'll be hit by the laser beam. Spam this routine through all ten wins and more if you like but the achievement does not pop till you lose so win ten matches then just let the AI pummel you.

Similar to what HucBerCranPerry had said, but I found it easier with Angel as your main and whoever as your second.
You dont need to tag ever (i didnt have to and i just spammed the 2 moves below).

Angels Back+LK is a homing move that steps back a bit and does a lot of damage. At the start of the match you are in range of it, so just spam that. You always land the first hit, then spam the inferno (LP+RP).

Sometimes you will see them roll when you knock them down (typically after stage 6) so your inferno wont hit.
So hold Back and wait till they close in. Then hit (Back+LK), not only do you dodge any attacks by leaning back, you counter with a lot of damage and continue spamming inferno again.

I was able to get to about level 15 before taking any damage...

*Edit: As ForcefulOliver2 mentioned in the comments below - you can watch Angel's wings to see when they stop moving to time your next inferno to chain the move better.

The pair I used were Jack-6 and P-Jack
I used the Hold back and spam X,X Technique then continue to hold back to distance yourself from the downed opponent, by the time they wake up they will 99% of the time
dash at you so just repeat the above move until you win. If they manage a couple of hits just tag in your partner who has the same move!!

I only had problems with Panda due to his unorthodox movement.

Only LeeChaolan and laser edge kick combo,D+4,4,4,4 (D+ B,B,B,B), pretty quick wins !!! good luck fighters...
"Give up, or you're gonna get hurt.", Lee Onwards Tekken 5

A very easy way to get this achievement is by using Bob. Hold left on the D-pad and continue to press X and Y together. Once you’ve knocked your opponent to the ground, wait until they get back up before attacking again. Be sure to set the game options to one round and easy difficulty via Options from the main menu.

Using this method you should get this achievement very quickly.