I know how will this end. If I lose, he'll say "HA, you're a noob/faggot/whatever" If I win, he'll say " you're a noob/faggot/whatever" Oh well, if you want it so much, I think I can do it. If I see you on the server some day?
He doesn't play anymore, so I'm not sure why he would challenge. I'm not sure why he stays here either, he must be lonely. Siege is a team gametype, and everyone knows that 1v1's are completely meaningless.
If you believe that you are soooo right, and I'm soooo wrong, you really should get out of the rock where you've apparently been hiding under all this time.