Use udp unicorn
set the ip to 27.27.27.27
I set the port to xbox live(some people set it on random)
Set the delay to 2
all the other setting are 1
The slider which says kb which lags your connection set that to 5 and if it lags you straight out try lower the kb to 1( which works for me )
When you have found the right amount of kb you are going to wait for the person who is doing the ui glitch to tell you to search as soon as you search hit attack and it should take about 2 to 3 mins to put you in a locked lobby make sure you keep the lag switch going until you are in the lobby


(Ive done this 5 times and its worked every time for me)