Well, we mark our weapons with colors and codes, I believe the soviets or whoever he gets them from, do also, yet those have no markings that are distinct or strike out, nor are they stored in any special manner to prevent leakage of the agent, they are basic storage boxes!
NO FOOL would do that, regardless of their religion
http://www.globalsecurity.org/military/library/policy/army/fm/21-16/Appa.htm#TABA-3
explains the color coding for the folks here best....now , after a ChiCom / Sino Soviet gunrunner etc sells and delivers to a third world shit hole... that dictatorship is no more obligated to stay with such markings yet never have seen em repaint their munitions. They may add stencils in their own language in addition, yet, I never saw any replaced 100% .