Hot fix

• Fixed tranport quad bikes falling through the world
• Fixed animation not working while driving transport
• Fixed footstep sounds while in vehicles

• Fixed medium tank texture pop in
• Improved medium tank textures
• Improved light tank textures
• Improved non terrain decals for explosives

• Tentative fix for Ai vehicles getting stuck on slopes (needs testing)
• Tentative fix for some ai tanks not moving from spawn (needs testing)