There isn't that huge difference how the mp-18 looks than how the bf1918 models looks, bf1918 guys just has a bit more experience. There is still some parts on the texture what i will work later on, only huge problem on it is the uv bugs what can be seen on the wood. But its a bit too late to redo the uv-maps to the model.
Ingame you can't even see those problems so it doesn't really matter that much.