Sorry for the delay...
Unfortunately I didn't make a list of changes when I made my OOB. Now after a while it's almost impossible to do it.
What it comes to AP ammos for the 40mm grenade launcher I added those to Jaeger Squads without PzFst3. I don't have any "hard evindence" that this would be the case in real life. I did it in order to make the OOB more playable in email games. The fact that for example german parapioneers have AP ammos in their GL's supported my decicion. I think that it would't be too unrealistic to assume that in the wartime there would be few Jaeger Companys armed with AP GL's and without PzFst's...
PS. I hope that in the version 3 there will be a whole new OOB for Germany.