Complex sentence: In the Maquis they usually ate fruit and berries from the mountains and hunted with their guns, although they did not like using the guns because the Gestapo in the region might have heard them and they would have been caught.
Split into simpler sentences: In the Maquis they usually ate fruit and berries from the mountains and hunted with their guns. Even though they did not like using the guns because the Gestapo in the region might have heard them and they would have been caught.