Glad that worked for you genXgamer.
It may be those files from Andrew were a version of one of the mods mentioned as he does/did frequent Aviaskins more than me and actually pointed me to that link when I was underway with the Thorneycroft project I think, it is so long ago I get mixed up on when and where. We both worked on a project to improve the Yagg fire engine in the Aviaskins vehicle pack, this used a him for many of the vehicles in that buildings folder I think, there are two versions of the Yagg, the improved one is named Yagg 2 in the folder if memory serves, there is an image of that upgraded one at the start of this thread with ladders and stuff I made to go with it:
https://www.sas1946.com/main/index.php/topic,51617.0.htmlI have not seen much of Andrew posting of late so cannot ask the origins of his class files, however, they work so all is good. It could be I had one of the mods mentioned by others here in another install when some of us worked on that pack but now I use the files in the Junk's thread if I need to post a link to them for anyone.
That link to Aviaskins in one of the replies throws an error for me which is very odd as usually I have no issue with them, it gets blocked and yet other stuff like the skins by Mstislav seemed okay when I last looked. I thought posting what I had and the link might help anyone having similar woes because it is something helpful to have in an install allowing a little customisation of your models if like me you make stuff.
Further to what you say about the trees, I installed some trees, maybe yours, not sure that had that same blocky/triangular tree shadow. I don't think it was BAT but one of the other installs I have, not sure why I had it but it is not with all trees, there are some I added to one of my own map changes that do it also, again, not all though, it seems it is probably certain meshes affected.
I think it was in my main install so trying to bug fix that thing is probably beyond me, it needs special help as there is that much stuff in there, I am amazed it still loads.
Take care and be safe.
Wishing you all the very best, Pete.