The Army – The Wall

This is the final mission of the main story so be prepared as much as you can. Before heading out, grab some guns especially guns with stopping power like shotguns, explosives, and some snacks and healing medicine. When you're already set, follow the marker and talk to the Sergeant to start the final battle.

Protect Sgt. Erik Tan while he is rigging the wall with explosives. Be more wary of the freak types which are way more challenging than the regular ones. Focus on your melee weapon first. If you run out of stamina, have a snack or use your firearm until your stamina replenishes. Use some medicine if you're health gets too low. While fighting, the Sergeant will give you a false warning thinking that the explosives are already properly set, just follow him when he tells you to back out of the blast radius and cover his back once more. Once he's really done, stay out of harm's way and watch the fireworks. This completes the main game.

As a soapbox open world game, you have the classic option of continuing where you left off even after endgame. If you load your file after finsihing this mission, you will continue as if you have never started this very last mission.