When I first used the Wasp hull, I drove around all normally and stuff on Sandbox, until I started up one of the ramps. My tank sank into the ramp. I tried this on various maps and the problem reoccurred and I also saw this guy with Viking sinking into the ground, so I tried it myself, and that also sinks. As long as I drive on flat ground, nothing out of the ordinary happens.
Customer support service by UserEcho