I created a Danish Jaegerkorpset PC for a v1 timeline, v2.2 rules PbP and equipped him with a scoped, suppressed HK21E. It's awesome. It works equally well as a DMR and a LSW/LAW/LMG. Golden- possibly the ultimate T2k small arm.
That said, I really do like the RPD. If I ever have to gen up a new PC, I think I'll give him an RPD.
https://www.youtube.com/watch?v=mbDHeNrhPfA
In John Plaster's
SOG: A Photo History of the Secret Wars, he describes how SOG recon teams mod'ed the RPD for LRRP use. They removed the bipod and cut down the barrel to just in front of the gas tube, shortening it to 31" and lightening it to 12lb, just a bit heavier than a Tommy Gun. They jury-rigged an additional 25-round segment to the standard 100-round ammo belt, and put a slice of linoleum in the drum mag to eliminate rattle. He calls it the "most fearsome short-range weapon in the SOG arsenal".
-