It made dropships annoying, not fearsome. I hated it when CMT did something like that, too.

As Reach is wont to do, it restricts player options. In Halo 1 heroic, every weapon is useful and there are many viable ways to approach combat. In Reach, it's DMRs and plasma pistols at medium range. It's the only way to avoid the numerous thoughtless, ill-conceived design and balance decisions the campaign has.