Warface for Xbox 360 has three in-game currencies:
Warface Dollars ($) are earned by playing Co-op or Versus games. All game-relevant items can be bought for Warface Dollars.
Kredit (K) is the premium currency for Warface. You can buy Kredit from Microsoft Store through the in-game store. Kredit allows you to buy standard equipment as well as three types of Kredit-exclusive items:
Booster: This increases the speed at which you gain levels, unlock new items, and gain Warface Dollars.
Resurrection coins: These allow you to instantly Respawn to help your team (Co-op missions only).
Random Boxes: Each one of these contains three nice surprises.
Warface Crowns are a reward for performing well in Co-Op missions. This currency is used to acquire the most elite equipment in the game.
Note Xbox Support can help you with problems buying Kredit from Microsoft Store. For problems spending or managing Kredit in Warface, contact the game’s developer, Crytek.