Just because it's classified doesn't mean it's valuable. Lots of stuff is classified for bureaucratic reasons. Also, there's little about the Challenger 2 that opposing forces couldn't have researched. The tank itself has been around for more than 2 decades, and the Soviets/Russians have been consistently able to penetrate British security for the last 70 years.
The gun is nothing special, and it's performance is well known. Chobbham/Dorcester armor has been around for quite awhile, and isn't unique. The US has sold M1s to Egypt, Iraq etc with Chobbham armor.
The gun is nothing special, and it's performance is well known. Chobbham/Dorcester armor has been around for quite awhile, and isn't unique. The US has sold M1s to Egypt, Iraq etc with Chobbham armor.