Offroad Capabilities

[H3 Hummer]

Since i do not have the rear locker, what can i do off road and what cant I do?

As all the others have said, the H3 base is very capable off-road but more specifically without the rear locker, you can not take advantage of certain obstacles that benefit from a locker. Like in the picture - the wheels will come off the ground and why do you need power on a wheel that has no traction the locker will pull you thorough obstacles with power to only one wheel.