Features below in the description.
Mod creator - Sovietmann
1) The addon turns SAS soldiers into classic Soviet special forces.
2)Adds absolutely additional weapons to all missions - AK74u with and without a silencer.
3) Adds a Makarov pistol to the game in all missions, except Training (killhouse map), in versions with and without a silencer.
4)Changes skins and models of enemies.
5) Changes the plot of the game.
It also contains some other little things.
Note:
You can get additional weapons using cheats - "give aksu_silencer","give aksu","give pm_silencer","give pm".