Wrong section so I moved it, now as for your question on XBox you can eitherbutton smash or what works better is rotate the right stick so I would assume that would work for you to, its tough though and you need to get your submission right up point wise and leveled up to really pull it off.
"If you get hit and it hurts hit him back you not knocked out yet."-Joe Doerksen
The Toxic Terrors (FFL)
Demetrious Johnson*Eduardo Dantas*Emanuel Newton*Will Brooks*Michael Page