Not exactly sure everything your wanting to say but that might be the no shoes no shirt no school rule we have in the States. There are tons of new buildings and infrastructures of all types that weren’t around 20 years ago. I was but I’m old and have plenty of memories that pre date cfs2 if your asking if you can swap them out like the older buildings with the newer stuff then it’s possible but before you go jumping up and down in a wild celebration it’s not gonna be something simple as renaming files and replacing them. It’s more like replacing gobs in the CfS2 with the newer stuff taking out the older stuff. Other than that you can always use new stuff in mission builder but of course it’s only there in a mission not a permanent thing. The beach textures are certainly replaceable in the Pearl Harbor mod unless your wanting ladies in bikinis on them which doesn’t work well while flying as they just don’t show up like you want so if that’s what you want I’d say don’t bother or do the real deal but the looks of the beach can be changed. Also you might could redo the two infrastructure files that came with CfS2 but that’s right everything is in two bgl files while most modders do on building at a time so bottom line is this stuff is doable but winning the lottery is too so not everyone is capable or lucky enough to get the job done.