To distinguish your Afgansty infantry on the table, you could paint some or all of your figures wearing the VDV's distinctive TTsKO (tryokhtsvetnaya kamuflirovannaya odezdha - 'three-colour camouflage') unifom.
This camouflage pattern was developed in the early 1980s and was used extensively by Soviet airborne forces during their involvement in Afghanistan.
As well as the distinctive camouflage uniform, VDV troops wore a number of other uniform items that differed from the rest of the Soviet Army. These included a white and blue striped T-shirt (Telnayshka) adopted in 1979 due to their commander-in-chief Vasily Margelov continuing to wear one to commorate an earlier point in his career when he served with the Soviet Naval Infantry during the Second World War.
They wore a distinctive light blue beret when not in combat. They also exchanged the usual red shoulder boards and arm insignia with the same items in light blue.
(Uniform images courtest of Vadim Aleksanderovich Taras - 'MoscowNights92')