View Solution

NOTES:
- Please note that mid-mission saves will not transfer between PC and Xbox One as they are not compatible.
- Steam is self-contained and will not impact Xbox or Windows Store saves.
- This basically means that if you Save & Quit on PC at a checkpoint mid-mission, you must resume your progress on PC as well.
-- Source: MCC PC Crossplay & Cross-Progression – Halo Support


Prerequisites:
- 64-bit Windows 7 (or newer) operating system (How can I tell?)
- Halo: The Master Chief Collection for PC installed
- Mods
- (optional) HudSight app or sticker on your computer monitor to mark where the reticle/crosshair would normally appear


I will not be linking to or mentioning where to get mods from. You can find Halo: The Master Chief Collection mods easily by searching Bing/Google.


First, we are going to launch the game and bypass the Easy Anti-Cheat software so that we can run our mods.
- Press the Windows key on your keyboard, then type Steam.
- Click Steam in the list of results.
- Click Library
- Click Halo: The Master Chief Collection
- Click Play
- Select Halo: MCC Anti-Cheat Disabled (Mods and Limited Services)
- Click Play
-- IMPORTANT: Achievements will be disabled when running the game and bypassing the Anti-Cheat software. Do not attempt to get any other achievement during normal play. Par scores and mission times will not upload to HaloWaypoint.com.
- Click Campaigns
- Click Halo 2: Anniversary
- Click Playlists
- Click LASO Campaign
-- (optional) Choose whether or not if you'd like to have Scoring and/or Time on your heads-up display (HUD), if not just...
- Click Accept Options
- Click Start
- Play through the entire Halo 2 campaign until the final checkpoint on The Great Journey mission.
-- You might want to consider getting a vehicle into the Control Room (e.g. Banshee or Spectre) to help aid you in defeating Tartarus. If you do that, you will need to get the vehicle into a specific area as seen in the videos below.
- Continue playing until you reach the Control Room where you will see 4 regular Brutes with Tartarus in the middle.
-- If you managed to bring a vehicle along from earlier, you should be able to turn around and find it in the room behind you.
- Press the Esc key (Escape key) on your keyboard. This will pause the game.
- Click Save & Quit
-- This should bring you back to the Halo 2 mission playlists screen.
- Click Back
-- This should bring you back to the Halo 2: Anniversary screen.
- Click Back
-- This should bring you back to the Campaigns screen.
- Click Back
-- This should bring you back to the main menu.
- Click Quit to Desktop
-- This will exit the game completely.



Now we will re-launch Halo: The Master Chief Collection with Easy Anti-Cheat (EAC) enabled.
- Be sure to disable your mods, restore the game files to what were originally, or repair your installation before continuing.
- Press the Windows key on your keyboard, then type Steam.
- Click Steam in the list of results.
- Click Library
- Click Halo: The Master Chief Collection
- Click Play
- Select Halo: The Master Chief Collection
- Click Play
-- You should see the Easy Anti-Cheat logo and a blue progress bar that will fill up. If you do, achievements are enabled. However, we still haven't actually finished the Halo 2 LASO Playlist yet.
-- If the game fails to launch, you will need to disable your mods, restore the game files to what were originally, or repair your installation of Halo: The Master Chief Collection before attempting to re-launch the game again.
- Click Campaigns
- Click Halo 2: Anniversary
- Click Playlists
- Click LASO Campaign
- Click Resume
-- (optional) Choose whether or not if you'd like to have Scoring and/or Time on your heads-up display (HUD), if not just...
- Click Accept Options
- Click Start
- You should see the load screen for The Great Journey mission
- You should be at the final checkpoint where you must defeat Tartarus.
-- If you managed to bring a vehicle along from earlier, you should be able to turn around and find it in the room behind you.
- Defeat Tartarus as you would normally. Just be sure to watch out for the Brute reinforcements that enter from the other platform.
- If you managed to defeat Tartarus, a cut scene will play.
- You will be taken back to the Halo 2 mission playlists screen.
- Achievement unlocked.
-- You will also unlock the Seconds achievement.



If this happens to be your 3rd playlist completion, you will also unlock the Connoisseur achievement.




Video credits:
- Halo Completionist
- OneTickShaka