OK, first point, you didn't say in the BA dex, so forgive me for assuming Codex SM.
Second point, just as you can have an assault squad without jumppacks in Codex SM, so you can in Codex BA. Troop choice, free rhino, and whatever the point cost is for an assault squad, that's how you get a cc-armed non-jump-pack squad using Codex BA, which is what you're after. Sorted.
Of course, if that's
not what you're after, what you're asking is more or less "can I have some advantages that the writers of the codex didn't see fit to give me?" to which my answer would be "yeah - but pay BA prices for squads while you give up the Death Company".
In other words, I'd make you pay more than you would to build your army from Codex SM.
Harsh? Yeah, that's me...