German 15cm sIG and the various units using it

[Pibwl]

I see, that most units have no description. Unlike OOBs, they are not important for playing, so maybe you just let volunteers do the work?..

I don't care too much myself about lack of descriptions, but in need I can write concise descriptions, eg. for Polish stuff (I recall, that years ago I contributed some material to SPWAW). This might be in fact a good idea, explaining their usage...

Michal