But once I got to the area right before the airship base (there's a Combine controlled house, where the three guys are outside at first and are easily dealt with with the buggy gun, and a rowboat hanging from the ceiling inside), where if I went into certain spongier parts of the beach it happened again. I started a new game, starting at the beginning of that 'Highway 17' Chapter, and for a while, things were good. I didn't really think it would, but it was worth a try. I just tried walking back all the way to where I originally got the buggy, and that didn't help. None of my save files go back far enough before this bug happened (I feel stupid). When I try to push it onto the road, it does all kinds of flips and craziness, but that wheel never comes out of the ground. Now I can't get it from the soft ground onto the road to continue. I literally used the gravity gun to push it along to that base. It got stuck somewhere shortly before the base where you have to shoot down the airship with the rpg.
I'm in the 'Highway 17' section, and at some point while driving along the sand, my buggy got one of it's wheels 'stuck' in the ground. The screen just goes black and moves me back to the previous location. Whenever I try to go on, the game behaves as if I was falling or something similar. I am in the chapter 'Highway 17' under the bridge with tracks. I'm playing Half Life 2 on The Orange Box for the Xbox 360. I have a problem with MMod for Half Life 2.
