OH: 1-sprint on single squads, or 2-global sprint. 3-Global 25% acc with decap/cap rate.
USF: 1-Fire up (sprint), 2-cover to cover (AoE sprint and smoke arty). 3- Combined arms (requires vehicles nearby)
Assault and Hold & Combined Arms don't change movement speed.
SU: FHQ inspiration, inspire (which unit does it have it?), FMT
OKW: radio silence (sprint), VA, FTF (RA + sprint on own territory)
UKF: Heroic charge, Hold the line (RA on friendly), Assault, Air ressuply,
KV2 and KV8 get inspire at vet 1, not sure if it's sprint or just extra movement speed.
Don't remember if FHQ & Hold the Line change movement speed, not mentioned in guide either.
Radio silence, FTFL, Assault and Resupply are movement buffs, but not sprint (so units can still fire on the move).
I might miss something, some things might have changed. Hard to track everything without up to date things.
There are still certain units that can sprint. Out the top of my head:
- Assault Grenadiers
- Panzerfusiliers (vet 5)
- JLI
- Conscripts
- Captain & Lieutenant (veterancy)
There's also Combined Arms for Panzergrenadiers which gives a modest movement speed buff.