BlockFront

Added new 'Underground' map for Domination game-mode

Added new PPSH model, textures, animations and sounds

Added new PPS43 model, textures, animations and sounds

Added new MG-34 model, textures, animations and sounds

Added new Piano and Watering Can block models and textures

Added new skins for the PPSH, PPS-43 and MG-34

Made improvements to the UX and flow of map voting

Made small adjustments to Colt M1911 model and textures

Fixed Kalt using old map vote texture

Fixed vehicle engine sound playing upon loading the vehicle entity

Fixed the German Wehrmacht using incorrect textures

Fixed invalid environment type error message