Physics Engine Bug. Uggh! Why the hell do you have to make things so complicated? Mp4 fromat might be easy for you but a pain in the arse for the rest of us and only accepting mp4 formating is also stupid and creates even more problems. A lot of the older maps from year 2and year 1 and all the up to the present have so me serious bugs. on The Amur map vehicles still get stuck on rocks and everything else plus due to how old the game software is and was already designed using the old unreal engine everything is blue and the plants and everything else are purple which are tell tale signs of corruption of master-assets and master files on your end, even smoke clouds are blue.