George (also known as "Herman the German" or simply "German") is a playable character that first appeared in the first Killing Floor as a cross-promotion along with Nikolay. They are awarded to players who own the Digital Deluxe Edition of Red Orchestra 2.
Note that owning the Digital Deluxe Edition of Rising Storm (another Tripwire Interactive that has it's own cross-promotional items) also gives you the Digital Deluxe Edition of Red Orchestra 2, so instead of buying both you can just buy that one.
George was known as "Herman the German" to his colleagues at work for his unhealthy obsession with every tiny detail of his German WW2 uniform collection. He had been happily accepting the plaudits of his fellow re-enactors regarding his new replica Gasmaske Modell 1930/38 when THEY arrived. Beating off a bunch of monsters was not the use he had in mind for his replica MKb 42(H) - but it worked well enough!"