Default Ostruppen that can be requisitioned from base can receive the ability to sprint when Ambush Camouflage is purchased.

However, Ostruppen from the associated reserves call-in, cannot sprint at all.
Additionally, in terms of design philosophy, shouldn't the call-in be cheaper than building?
I don't see the point in making a call-in that costs 25 more manpower for the benefit of rapid deployment, especially since Ostruppen are unable to merge with squads to accommodate losses.

Perhaps allow them to spawn with an MG42 or allow the reserves to merge. Considering that the squads are separate from the HQ Ostruppen, you could make them distinct and unique by allowing the reserves to merge with squads to truly fulfill their role.