(Wisp @ Feb. 15 2008,14:23)
QUOTE
Question: Why are the land raider crusaders allowed to carry three stands of marines or two stands of terminators? They fit only 15 marines (three stands) or 8 terminators (1? stand).
And don't tell me you're allowed to use stands of less than five marines, by that logic you could shove quite a few stands into chimeras, which can fit twelve men inside.

I think it is to do with rounding.
8 is almost 10, but a lot more than 5.
Besides I base my termies 4 a base, to make them seem more impressive for what they do. So I can fit two stands into a crusader. 