what is the trick to halo 3 achievements?

[??[[PLAYER]]??]

ive heard that if you and 5 of your friends se the language to something no one has ever heard of you will be able to be paired together. will some one help? i need, overkill, nextime buddy, 2 for 1, and not too many more.
what im saying is will someone help me? i need 5 gamertags to do it correctly. and those 5 we need to choose a language to use. pretty much you scatch my back and ill scratch yours.

 

[Sebastien S]

i don't get what you are trying to say, but if you want to cheat try and get everyone in the game in a party chat and cheat, or actually work on it

 

[Ethan]

switching languages sometimes work if you have enough people in your party