Hey fellow Final Fantasy VII player! When it comes to mission walkthroughs, preparation is key. Make sure to stock up on healing items and equip your party with a good mix of offensive and defensive materia. For the Reactor 1 mission, focus on taking out the security officers first to prevent them from sounding the alarm. In the Sector 5 Reactor mission, utilize Barret’s long-range attacks to deal with enemies on the upper walkways while Cloud handles those on the ground. And don’t forget to explore each area thoroughly for hidden items and secrets. Good luck on your missions!