You see , you have a good imagination using different scenarios with the weather as well but the people at bungie prob had similar ideas but I think they got lazy and knew the game was allready a hit so why bother second . They were to focused on pvp rather than the game story it's self . Ideas like yours are gold and I've had a few myself . Such as why is there not chase missions on your speeder chasing down fallen bandits were you duke it out on the speeder , why money and a lazy unimaginative company !