Complex sentence: The remaining Char D1s were concentrated into the "Brigade Légère Mécanique" and fought during the Battle of Kasserine Pass, even destroying a Panzerkampfwagen IV, which was quite a feat given the poor anti-armour capacity of the 47 mm SA34 gun.
Split into simpler sentences: The remaining Char D1s were concentrated into the "Brigade Légère Mécanique" and fought during the Battle of Kasserine Pass. They even managed to destroy a Panzerkampfwagen IV, which was quite a feat given the poor anti-armour capacity of the 47 mm SA34 gun.