Infantry camo's would be very rare in this time period. Solid colors were used during WWI and WWII because it hides you better while moving. Camo's weren't used by most nations regulars in our time until after the Vietnam war. In the RA universe, we haven't had the lesson's of almost 4 (WWI, WWII, Korea, and Vietnam) wars to realize that war is becoming more sedentary as firefights start from a bit further away (100m vs 50m) and last a great deal longer. Solid colors would be used by most forces, and the only soldiers who would would be special forces soldiers, so the sniper, Tanya, spy, thief, and shock trooper would be the most likely candidates. Volkov would be on this list, too, but since he was an experiment that was used as a one-man army, he would be moving around too much for camo to be effective. Instead of camo, the other troops would be issued color-variants of their current uniforms (tan, OD green, grey, and white).