During the Korean conflict, both China and North Korea fielded a wide variety of weapons from WW2 of US, German, Japanese and mostly Soviet manufacture.  After the conflict, China started manufacturing copies of Soviet weapons that were purchased during the War.  The player may notice that some Chinese weapons such as the Type 54 HMG appear prior to their actual date of Chinese manufacture.  These weapons represent identical Soviet versions of the same piece such as the 12.7mm DShK HMG in this case.  