As far as I know, the Camp Navajo events are up in the air, if they are even going to happen again due to the recent split between the organizers. With only a few months to plan and nobody talking, I doubt the games will be anywhere near the quality that they were in the past.
I didn't go to LC last year but went to the three before that, they were fun but I was hoping for better local games to develop. They haven't, so I would suggest you guys give LC a shot, at least that will give some of you an idea of what some of the older members of the board have been going to for a long time now.
As for vehicle use, LC events don't involve vehicles to the extent that the combat challenge games did. You were packed like sardines into the back of a duce and that is about all you saw of being wheeled around on the field. There are a few tank-ish things that guys in cali have cobbled together but nothing to get excited about.