During the op today, Bravo launched Canister Harassers off a hill near Rime Analytics to get them inside the base. Being who I am, I decided to join them with my Sunderer! The best method I found to get inside is through the use of a Hardlight Barrier, placed on the south side of the base, long-ways next to the lowest point of the rock formation.
Driving over this is simple enough that a beginner can do it. All you have to do is come to a stop and slowly drive forward, giving time for the front tires to rise into the air. Once your front tires are on the rock formation, floor the accelerator.