Description: Survive Waves 1-20 on Waystation.
1. You do NOT have to do this in 1 sitting.
Just remember what wave you last finished and start on the one you have not completed.
I recommend using Google Sheets to track any Gears achievements.
2. Understand that the map layout is just an upside-down U shaped map.
There are grenades/inks on either side of the map near spawn, snipers/torques in the downstair rooms, and Boltoks/Gorgons right above.
3. (Gorgon Pistol + Boom Shield) is an overpowered combination.
You can get the Gorgon Pistol on every other wave at the top of the map, right above the Sniper/Torque Bow on either side.
You can (unfortunately) only get the Boom Shield from Maulers that appear on Wave 7-10 or 17-20.
If you plan to solo this, make sure you start on Wave 10 and work your way up until you see Maulers so that you can start that wave and get a Boom Shield to help you clear the rest of the waves.
I got stuck on Wave 16 and I never encountered a Mauler until Wave 18 so I had someone help me out on Wave 16/17 because I desperately needed the help (you've been warned).