UFC 2009 Undisputed
30 Achievements
1000
Xbox 360
Ultimate Submission
From the gassed state, Submit an opponent in any mode. Details for this achievement will be revealed once unlocked
15
How to unlock the Ultimate Submission achievement in UFC 2009 Undisputed - Definitive Guide
Fight a rough, yet guarded match for a while against a weaker opponent. Gassed state means when your tired. Easiest way to check this is by going to the pause menu and finding the option "Turn on stamina bars". Once you feel confident your stamina is low enough, go in and use a submission move against the opponent. Can't be done by striking, you must use a submission move.