How do you deal with disgruntled Halo 3 players who won't play Halo Reach?

[disolitude]

MARCUSDJACKSON said:
challnge them to face you. you haft to win though

lol...I like this idea. Sadly they will insist I face them in Halo 3 and not Reach, and ever since I played Reach I totally forgot how to play halo 3.