Some bugs (or perhaps not bugs?).
In F3 mode (offline) your own vehicle sound dies off at very short distances, like < 200 ft; might adversely affect video production since at a normal camera distance there is no sound.
The sound is still flaky in vehicles. Sometimes the tread sound will fade out or not come back after stopping. Sometimes the engine sound will fade out and track only audible. Sometimes when the track fades to faint levels it no longer changes when going over pavement or a bridge like it does when it's louder. In one instance the engine became inaudible and the track was left channel only, stopped eng off and restarted engine still gone and track was faint and right channel only, stop start again and track is faint but center channel and engine is back. I've tried to find a pattern on how to reproduce, but I could not.
Another player was in CraterMA online and was testing destruction of buildings at the city (using an LVT4) and I joined him. He said he was going to post his findings, but I haven't seen it yet so I'll mention it. Buildings in town took quite different amounts of HE to destroy, some 2 shots, some more, some 6 shots, and some would not go down with up to as many as 20 shots. I tested the buildings at two other strats (fuel and AAA) and they all took 2 shots to destroy. Also, the 88 mms on top of the flak tower are very hard to hit and to destroy. One took a direct hit from my 85 mm T34 HE and didn't go down. The second direct hit killed it. No amount of indirect hits affected them and many shots seemed to pass right through.