I've debated for nearly two weeks on if I should start this thread at all and have had this window open on the post being written for more than two days. But it's time to just fire it off. And since this is going to be a long wall of text, I'll post a short tl:dr summary:
tl:dr summary: I've decided to design and build a CAV dropship, but to put as much engineering realism into it as possible. But I need help on two things for sure, "What is the heaviest squad you've seen/played/think-legit?" and "What's the dimensions of the tallest, the widest, the deepest, and the overall most voluminous CAV?".
Wall of text begins,hidden behind the spoiler for easy, later browsing of the thread, with one dinky semi-related pic: