The Challenger M15 Tank Was The Main Battle Tank (now medium battle tank)of the Red October since the modernization of the armed forces it was locally produced known ad Cosgrove M15 Named after the final name of miranda cosgrove of ICarly The Armament is 105 mm Turret And 2A42 Shipunov cannon But In November 25 the Tank was decommissioned under the armed forces but the tank gaved the second chance in battle,it was become a reserved and medium battle tank and others transferred to Mikoland but in the bright side it was used to Armed Corps Of The Armed Forces The tank was replaced by M1A2 Cho Chang MBT And The Red october is Awarded Several Wars.