The rhs_weappack_v1.00.rar file you have requested: Add Ons / Weapons / RHS Weapon Pack (1.0) - 18.99mb is not available. Perhaps try browsing all files for the game ARMA: Cold War Assault and upload any files you want to share or are missing. This is the only information we could locate:
A Russian weapon pack created by Red Hammer Studios. Required for some of their addons.