The serb_army.rar file you have requested: Add Ons / Units / Modern Serbian Army (1.96) - 19.32mb 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:
For more information on Operation Flashpoint Resistance, visit Operationflashpoint.filefront.com Modern Serbian Soldiers. You need JAM2 and LSR US Weapon Pack.