For Germany
Panzerwurfmine Kurz
A panzerfaust warhead that was hand thrown and stabilized by fins. It could be thrown farther than a regular Det pack, but it would have to directly hit a tank to kill it.
TL:DR
longer range
better penetration
has to hit a tank square on
For Russia
RPG-6
An upgraded version of the RPG 43. It would be able to be chucked like a normal Det pack, probably a little further. It would have around 100mm of penetration. In reality it had to have a square on hit on a tank to work. But for gameplay’s sake it can destroy a tank without a direct hit, it just has to be near it.
TL:DR
Slightly longer range
Has lower penetration than the Panzerwurfmine Kurz but does not require a direct hit to kill tanks