Step 1: Reach Round 3 (Finish the Objective for that round, but dont travel to the next one)
Step 2: Follow the Lighthouse Light
Step 3: Collect the Artifacts (Diner, NukeTown)
Step 4: Travel to the next round
(You're going to need to shoot down the Meteorite, Step 5 and 6 tell you how to do it)
Step 5: Go to Area 51/Broken Arrow facility
Step 6: Shoot the giant railgun (Interact with it)
Step 7: Go to Town
Step 8: Go into the bus (In Town) and pick up TED
Step 9: Go to the MPD that you shot down with the rail gun (in town)
Step 10: Travel to the next location
Step 11: Go to the forest near Nuketown and kill zombies near the trees with faces. Eventually one will spit out a golden item (Branch)
Step 12: Go to Wooden Bridge by Diner and look for the purple either crystal thing. Shoot it while standing under it and hold interact to pick it up
Step 13: Go to the green swamp place near the Lighthouse and assemble the spear
Step 14: Fill the spear up with souls and when its done pick it up (Warning: Takes a weapon slot)
Step 15 go to the bottom of the lighthouse and there will be a weird generator looking thing, Throw your spear at it
Step 16: Interact with it to Ascend
Step 17: Walk around the new area and there will be a place to place ARTEMIS, pick up the head and head to the opposite side of the room and do the same|
CUTSCENE!!! Sit back and relax for a bit
Step 18: Walk up to the objective and place ARTEMIS
Step 19: Facing the Goddess; take a left and play simon says on the computers
Step 20: Once complete, go back to ARTEMIS and Merge Data (Get ready for a wave of Zombie)
Step 21: Find the Valves around the map and turn them all green (facing the Goddess, Mine were on the opposite side of simon says and back where you placed ARTEMIS's head 2 times)
Side note: You will hear the Valves hissing and its on a timer so be quick!
Step 22: Go to ARTEMIS and Merge Data (Prepare for another wave of Zombies)
Step 23: Facing the Goddess, take a right and go to the generator, you'll notice electricity coming out of it, from the electrified pipe, there will be a wheel you can spin, spin that until the electricity transfers into the next pipe, rinse and repeat. When the wheel shocks a blue orb, get a Tempest to shock it with its attack.
Step 24: Go to ARTEMIS and Merge Data
Step 25: Run to the objective
Step 26: Congratulations! Almost done! Now either choose Continue Objectives if you want to gather more points and get prepared or choose Continue Quest to continue the easter egg.
Step 27: Now that you have chosen to Continue Quest; Head over to the next objective.
Step 28: Now that you have ARTEMIS as a companion go and find 3 navcards around the map.
Locations: TRANZIT: At the Bus Depot go behind where the locked door is beside the mystery box and the navcard should be there; BURIED: Head for the Church and in the Graveyard beside it, you'll see the navcard sticking out of a grave with the name Arthur on the tombstone; DIE RISE: Head towards Town and you'll see a Dragon Sign, climb up to the mouth and pick up the navcard from it's mouth.
Step 29: Head to the objective after all the yapping
Step 30: Boss Fight
Facing Agamemnon run into the room to the left, there will be four skulls, grab one and throw it into a yellow sphere somewhere in the boss arena. Note:Sphere spawns are (facing Agamemnon are: Behind left of him and right, behind the left stair case to go to the lower level, and above the door from the inside of the skull room. Agamemnon will be exposed, shoot him.
Eventually, facing Agamemnon, head to the room to the right, and interact with the panel.
A Mini Boss will spawn, kill it and the mini boss will drop an arm, pick it up and place it at the objective icon.
Once the arm is placed, Agamemnon will become vulnerable in a few seconds.
Eventually the door behind you facing Agamemnon will open up, run in there and kill the two boss zombies.
Agamemnon is going to freak out and start shooting lasers everywhere and eventually off himself.
Once given the option, press the button on the middle console, once the main character are done talking, shoot away at the big purple glob.
Congratulations! You've done it!