Experience Points

Experience Points (shortened to EXP) are points earned after a match. Like Gear Points, the better you do, the more EXP you earn. Gaining more Experience gets you closer to promotion of the rank above the current one you have.

For example, pretend you're new in Combat Arms and is starting with the Trainee rank. To get promoted to the Recruit rank, you're going to need to play enough matches to earn yourself 550 EXP (the required amount for that rank).

Missions (like Flag capturing and Bomb planting) actually increase EXP per match, so do various missions to get promoted faster. The Bonus EXP Pass (25%) increases your earned EXP per match by a fraction more.