Hello I did that on purpose as the tanks go way too fast off road. I have made it so that they drive at their maximum reported off road speed given that they battle offroad.

What needs to happen is for the tank class of units to have an on and off road coefficient like the cars do and then one could have everything right.

To change speeds your self you need to change the speed setting of each tank in the tanks c pbo. Some of them will not change speed though due to the gear box and final drive ratio where some tanks needed no limiting factor to drive slow with real gear box and final drive settings. In that case if you blank out the physic settings and it will revert to the vanilla settings in the main mod and be much faster, too fast for offroad.

The tanks in WW2 only did about 20kmh offroad an so that is what they do in my mod.

Hope that helps.

I have made an important update that addresses this mattter better. A different physic approach.

Using the ARMA 3 diag programme I edited the tanks to that they have:

1. Real life inputs for technical characteristics such as power, torque, weight and as many other things as it is possible to do.
2. Set the wheel damping so that the tank was able to do at a maximum its top reported road speed in top gear at maximum revs. That sets the upper limit.
3. Then adjusted the clutch and some other parameters so that the tank drove at a realilstic speed on flat ground. So downhill a tank can reach its top rated speed and move into top gear at maximum revs.
4. This is a better system than governors or other actificial limits that fixed the speed in all conditions.
5. This also means that the tanks have lots of low end power and torque where they need it most.