From this distance, a man would have had a hard time seeing one light a fuse; even one as well eyed as your Joan might find it difficult. With these giants, however? Not so much. Readying another volley of grenades, the mercenaries light the fuses of their grenades, and that is when you men fire!

It works! Perhaps a bullet strikes a grenade, or perhaps the fuse had been lit too short, but mere moments after the barrage, a grand explosion rings out across the giant's formation, like a ship whose blackpowder magazine was hit! If they were not hurt before, they certainly are now! You've no doubt that explosion must have killed more than a few of the giants. Even before the smoke dissipates, the ones who had not been caught seem to hesitate in their throwing. Had this truly never happened before to them?

Nevertheless, you have just achieved an edge, broken their attack and struck a blow to their morale! You must not let this advantage be lost! You must follow up: but how?

CHOOSE YOUR OPTIONS
>Keep firing! Now that you know how to stop them from throwing, you can grind them down with the firelocks
>Have your knights charge while they're still confused
>Order an all-around charge from your army
>Write-in

Apologies for the long pause, I got distracted.