Crysis 2 Limited Edition Extra XP?

So i bought the limited edition of Crysis 2, used the code that comes with, got to level 5 with the extra xp, and so my question is, if I where to buy another xp code, would it add onto my current xp or reset it or something?Crysis 2 Limited Edition Extra XP?
i think you can go with Crysis 2 - Limited Edition i am sure you like it .



Crysis set the visual benchmark for PC games that still stands today. Crysis 2 redefines the benchmark on console now, shifting their attention to the rich urban jungle of New York City.

Challenging best-in-class AI with unique group coordination and group behavior systems which give realistic responses to your actions.

Adapt your combat tactics by customizing your Nanosuit 2 and weapons in real time with revised modes, unlocking a variety of supersoldier abilities.

World-renowned multiplayer shooter studio Crytek UK reinvents multiplayer with the dynamic intensity of Nanosuit 2 in 12-player support online.

By using Nanosuit technology the player has nearly unlimited ways to approach the dynamic combat environment.

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