A fictive story presenting the USSR's final attack over the US at the end of RA2, ended with its fall and the birth of the Brotherhood of Nod.
The modified version of the AK-74. Physically, it
only has the but and the grenade launcher removed.
Functionally, it sports a bigger magazine with a
increased ROF at the cost of range and accuracy.
ak-74 is not a smg. its an assault rifle
Indeed, I shouldn't have stressed too much on the "smg" label, but, as wikipedia points it : "AKS-74U (U – Ukorochenniy) carbine, which in terms of tactical deployment, bridges the gap between a submachine gun and assault rifle."
So tactically, its a smg-assault rifle hybrid. Otherwise, its a carbine.
But this isn't AKS-74U :) Even if it will be the AKS-74U the only similarity between him and SMG is the compact size thats all xD