someone has challenged me to a 1v1 game on SWAT on Halo Reach in a months time. i am pretty good at halo but i play mainly matchmaking games and dont play any 1v1 custom games so does anyone have any advice or tips that would help me in a 1v1 SWAT game. if anyone wants to train me on halo my gamertag is KoG x iWeSa THANKYOU!!!!!!!!!!!!