If the Roadblock unit takes fire and they stop moving, they will get out of their truck, and you can't get them back in.
The truck they spawn with isn't part of their squad, and you can't add it to their squad. Nor can you add a new vehicle to the squad because the game thinks the squad already has a vehicle.
End result is your roadblock tries to walk to the target location, and they usually die, and it also takes them forever. And you can't do anything else with roadblocks until they all die or the task times out.
If the Roadblock unit takes fire and they stop moving, they will get out of their truck, and you can't get them back in.
The truck they spawn with isn't part of their squad, and you can't add it to their squad. Nor can you add a new vehicle to the squad because the game thinks the squad already has a vehicle.
End result is your roadblock tries to walk to the target location, and they usually die, and it also takes them forever. And you can't do anything else with roadblocks until they all die or the task times out.