Hey fellow Final Fantasy VII strategist! When it comes to materia management, I recommend focusing on leveling up your most essential materia like Elemental, HP Up, and Enemy Skill. Don’t forget to link your materia for combo effects like Elemental + Fire on your weapon for added damage.

For mission walkthroughs, always make sure to explore every corner for hidden items and secrets. Use the PHS feature to switch out party members and level them up equally to have a well-rounded team. In terms of character development, prioritize upgrading each character’s unique abilities and weapons for maximum efficiency in battles. Remember to experiment with different materia combinations to find what works best for your playstyle. Good luck on your FFVII journey!