How about a light rocket launcher for the light assault?

Something akin to an RPG, to be used against vehicles. Would do less damage than the heavy assault rocket launcher, and be carried instead of C4.

As a HA, I frankly don't see any problems with LA having a normal rocket launcher (as opposed to light) as long as it is instead of C4.

Although, am I right in assuming that if you equip C4 it's instead of the healing kits just like HA?

Only if shooting it down makes your jetpack go faster.

That would seriously be stepping on HA toes.

Yes it does. C4 and Medkits both use the utility slot.

We already have a light rocket launcher, its call the underbarrel grenade launcher, its basically a anti infantry rocket launcher.