First off you will want to start by getting the correct gear. Using Range or Melee is your best bet in God Wars.
Melee - Having 99 Strength, Attack, Defence, and Prayer would be best.
Your gear
[You must be registered and logged in to see this image.]Your Inventory
[You must be registered and logged in to see this image.]Range - I suggest having 99 range.
Your gear
[You must be registered and logged in to see this image.]Your Inventory
[You must be registered and logged in to see this image.]The Godsword is optional.
Now that you have the necessary gear and inventory your ready to go to God Wars!
Go to your spell book and click Pking and teleport to the Mage Bank.
Okay your at the Mage Bank, now click the Sparkling Pool.
[You must be registered and logged in to see this image.]Once inside you will see Goblins. You will need to kill 20 of them to gain entrance to either Bandos or Saradomin. Make sure you pray protect from melee. This is where the Godsword comes in handy!
[You must be registered and logged in to see this image.]Once you have all 20 kills walk Northeast to the staircase(It is just a black square on the ground).
Get Ready! You are about to go up against the fiercest bosses in Project Overload!
Saradomin -
Commander Zilyana (level - 648)Drink your prayer potion now you will not need it anymore seeing as how there is an altar in the room. Now, pray protect from mage, if you do not it is possible for Zilyana to hit a 75 on you. But even with protect from mage she will still hit 45 occasionally. It is as simple as that, just attack her but keep your health over 45 and pray protect from mage. If you do it with more then yourself it will be alot easier.
[You must be registered and logged in to see this image.]The boss drops 10 Shaikahan bones every time.
Rare Loot - Saradomin coif, Saradomin body, Saradomin chaps, Saradomin Mjolnir, Saradomin Sword, Saradomin Godsword, Dragon Boots, Rune Defender, Saradomin Banner, and a 3rd age platebody.
Good Luck!
Bandos -
General Graardor (level - 624)Bandos is alot harder then Saradomin. You need to pray protect from melee. You are only able to melee Bandos so bring your best melee gear. Once again go to Mage Bank, Sparkling Pool, kill your 20 goblins but this time enter the Bandos room.
[You must be registered and logged in to see this image.]The General drops 10 Shaikahan bones every time.
Rare Loot - 3rd age platebody, Bandos Chestplate, Bandos Tassets, Bandos Godsword, Rune Defender, Dragon Boots, and a Zaros Mjolnir
Correct me if i missed anything please!