The challenger Tank treads will go thru the small rock walls and the tank will be become high centered, becoming stuck there in position. The treads seem to clip thru. I dont know if this tank had its tracks updated to the tank DLC updated PhysX libraries.
Also it feels very sluggish, slow and under powered even though it has basically the same power to weight ratio and top speed as a T-72 IRL. (according to Wikipedia anyway.)
Engine Perkins CV12-6A V12 diesel 26.1 litre
1,200 bhp (890 kW)
Power/weight 19.2 hp/t (14.3 kW/t) at 62.5t, 16.0 hp/t (11.9 kW/t) at 75.0t.
Speed 59 km/h (37 mph)
Engine V-12 diesel
V-92S2F (T-72B3 & T-72B3M)
780 hp (580 kW)
1,130 hp (840 kW) for V-92S2F
Power/weight 18.8 hp/tonne (14 kW/tonne)
Speed 60 km/h (37 mph)