Each trading site will display the maximum profit you can make per trade which is often in the 80 percent plus
range on every single trade you make, so the profits really are there for the taking!
Unlocks for new classes and weapons in Multiplayer are akin to a
trading card - like system, where credits earned from games can be spent
on several tiers of «booster packs», each containing items
ranging from common (such as stat - boosting equipment lasting only a
single match) to rare (new races for each class, etc.).