Hey fellow Final Fantasy VII strategist! When it comes to materia management, I recommend focusing on mastering the most essential materias like Magic, Command, and Support materias first. This will give your characters a well-rounded set of abilities.

For mission walkthroughs, make sure to always explore every corner of the map to find hidden items and secrets. And don’t forget to level up your characters by engaging in battles along the way to make the missions easier.

When it comes to character development, try to specialize each character in different roles to have a balanced team. For example, you can focus on physical attacks for Cloud, magic spells for Aerith, and support abilities for Tifa. This way, you can cover all your bases during tough battles. Good luck on your Final Fantasy VII journey!