At the end of the game you will receive a Match Bonus for example. 2459. The moment you receive your Match Bonus consistently and extremely quickly tap X (or for ps3 users SQUARE). Keep tapping the X or SQUARE button until you come to the results screen (The Accolades and XP total and also youre Callsign and Emblem) then go right to see your Match Bonus, Challenge Bonus, Match XP, and Total XP. Look at the Match Bonus and you will see you will either have a Major increase in XP or depending on the rate of your tapping a Minor increase of XP. Hope This Helps Guys. =D