UFC Undisputed 3

I will preface by saying that you will need knowledge of minor major and special transitions. These movements are in pause menu>action list. each time you change position fully, it will match your actions from the new position and you will be looking under transition.

to make this easier you can use two controllers.

You do NOT need to do this in one match. You can do it in two and the fighters to use are Heavyweight Minotauro Nogueira (UFC version) and Welterweight Royce Gracie (in the pride row)
I THINK you only need the top positions but there will be two bottom required.
I will write this in a path of what you need to do,

UPDATE 2/29/12 SHOUT OUT AND THANKS to H3LLON3ARTH for his help in this discovery
You will need to be on top AND bottom for EVERYTHING
EVERY TIME YOU GET AN OPEN POSITION DONT FORGET TO USE LEFT STICK FOR SUB POSITION (posturing) AND ROCK THE OPPONENT
Of course this means that you will need to be put in everything, put in all sub positions, and put in all rocked positions.

you can check the pause menu>action list every time you get a new position in case you are unsure.

With Nogueira
*Full Guard Clinch>Full Guard open top>Half guard clinch left>half guard open left>side control left>Salaverry left>side control left>north/south>side control right>salaverry right>side control right>full mount clinch>full mount open.
*Full Guard Clinch>Full Guard open top>Half guard clinch right>half guard open right

using Nog's LT+RS --> you take the opponents back standing (varies against cpu due to defence) A major transition from here will gain you Back side control. If you do not take the opponent's back obtain top mount open and use P2 major transition to roll on your belly. From here LB+ Minor gets back side control.

*back side control>sprawl top
*back side control>crucifix bottom (LB+minor)
*back side control>back mount face down
*back mount face down>back side control right top>back mount face up right top>back mount face up body triangle left top
*back mount face down>back side control left top>back mount face up left top>back mount face up body triangle left top
*Back side control>sprawl top

now use controller two to obtain side control on yourself. a special (LB+minor) transition will net you butterfly guard

NOW use controller 2 and run all positions on yourself


Shoot a Takedown on your P2 and have p2 sprawl on you for sprawl bottom
(Thanks to ComMANdo DOOM for this) Alternatively, you can give up your back to P2 and have P2 take back side>minor to sprawl top.

with Gracie

use p2 to take yourself down into full guard clinch. a LB+Minor transition will get you rubber guard.


and that should do it! please vote positively if this helps and USE THE PAUSE MENU ACTION LIST!!!!!!!!

Just got the achievement after pulling off a back triangle in an exhibition. Below is a list of the transitions i have done in all of the positions. You dont have to be on both sides of them, you will get this eventually by just playing the game. Or you can force it out in 5 mins with 2 controllers:

Top

Full Guard (Clinch and Up)
Half Guard (clinch and Up)
Side Control
Mount (Clinch and Up)
North South (Major Transition from Side control)
Salaverry (LB + Minor Transition from side control)
Side Control Back (Major Transition from back clinch)
Sprawl (Minor Transition from Side control back)
Crucifix (LB + Minor Transition from Side Control Back)
Back Mount Face Up (Major Transition from Side Control Back)
Back Mount Face Up Body Triangle (LB and Minor Transition in Back Mount Face Up)
Back Mount (Opposite direction Major Transition from Side Control back)

Bottom

Butterfly (LB + Minor Transtion from Side Control bottom)
Rubber Guard (LB + Minor Transition from Full Guard Clinch, Bottom)

The Crucifix can be done by D.Maia and also Big Nog, the Salaverry can be done by plenty, Royce Gracie being one of them. Butterfly is also doable my Royce Gracie and Rubber Guard is doable by any good BJJ Fighter with high stats in that disapline.

Hope this helps