@PensiveDolphin Cool I'll take a look at it soon. LOD stands for level of detail. Typically games will have a few models at different resolutions that will swap out at further distances to lessen the load on the GPU.
I'll take a look at the texture mapping and try to give some tips.
For the flag, Unity has cloth simulation, so that can be setup in game, just need a flat plane for the flag. The cloth simulation in blender won't be used unless you save it out to a looped animation. Eventually I'll setup wind in game though.