You can spend credits to change your vehicle’s exterior for 7 or 30 days.
You can spend credits to repair damaged or destroyed vehicles. The cost depends on the vehicle type and tier.
You can spend credits to train and retrain your crew in Regimental School.
Equipment improves vehicle performance in a battle. Equipment can be simple and complex. Complex equipment can only be demounted for gold.
You can spend credits to purchase regular or Premium shells of different types.
Consumables are various items that—for example—improve vehicle or crew characteristics or repair your vehicle in a battle.
Credits can be used to upgrade vehicles and purchase modules after spending experience points.