@Bis good day!
The Arma3 is very hindered by the fact, that during the static launcher reloading, an animation is started, that the player cannot influence in any way.
Even under return heavy enemy fire, the player's character loses the ability to move, while for the RPG-7 this will be an exception.
Why does this happen only for RPG-7, the player of Arma3 has no idea! It looks like weirdness, bug, but not like a design decision.
Please fix this, because there is no reason why the RPG-7 has an advantage about other rocket launchers.
It seems to me, that it is possible to disable movement when reloading a heavy Titan Launcher (because its heavy guided missile), while other not guided missile launchers, such as MAAWS, RPG-42, should be able to player movement.