It is hard to tell, whats underneath could well be the hull. But yeah, the ammo distribution of the Challenger 2 has always been pretty questionable particularly due to the fact that the tank uses three-piece ammunition(projectile, propellant charge, electric vent tube), which forced them to storage ammo and charges all around the fighting compartment.
While the charges are kept inside containers, these aren't wet, so yeah, Challengers 2 have always been contenders for the turret tossing contest. They just have never faced enemies that could actually shoot back until now so there is a lot of hype surrounding the tank, even when multiple NATO and the UK's own test have showed it is a subpar tank particularly when compared to the the M1 or Leopard 2.
View attachment 134275